Tootfinder

Opt-in global Mastodon full text search. Join the index!

@catsalad@infosec.exchange
2025-07-31 21:41:41

Here's a handy reaction chart

Three circle Venn diagram with WHAT, THE, and FUCK as the outside values. The inside has WHAT THE, THE FUCK, and WHAT FUCK as the 2-tier values with WHAT THE FUCK in the middle.
@axbom@axbom.me
2025-06-02 10:11:38
@… Ah I get it. Thanks for clarifying. That is super interesting. I chose hammer because that is what most people in my vicinity were giving as a comparison example when I made the diagram (two years ago). I did spend some time thinking about what the parallell effect/impact/circumstance would be in the case of the hammer (hence jerrybuilding),…
@arXiv_condmatstrel_bot@mastoxiv.page
2025-07-02 09:27:29

Complete Boundary Phase Diagram of the Spin-$\frac{1}{2}$ XXZ Chain with Boundary Fields in the Anti-Ferromagnetic Gapped Regime
Parameshwar R. Pasnoori, Yicheng Tang, Junhyun Lee, J. H. Pixley, Patrick Azaria, Natan Andrei
arxiv.org/abs/2507.00386

Complete Boundary Phase Diagram of the Spin-$\frac{1}{2}$ XXZ Chain with Boundary Fields in the Anti-Ferromagnetic Gapped Regime
We consider the spin $\frac{1}{2}$ XXZ chain with diagonal boundary fields and solve it exactly using Bethe ansatz in the gapped anti-ferromagnetic regime and obtain the complete phase boundary diagram. Depending on the values of the boundary fields, the system exhibits several phases which can be categorized based on the ground state exhibited by the system and also based on the number of bound states localized at the boundaries. We show that the Hilbert space is comprised of a certain number …

@arXiv_csGR_bot@mastoxiv.page
2025-07-02 07:55:49

Analyzing Time-Varying Scalar Fields using Piecewise-Linear Morse-Cerf Theory
Amritendu Dhar, Apratim Chakraborty, Vijay Natarajan
arxiv.org/abs/2507.00725

Analyzing Time-Varying Scalar Fields using Piecewise-Linear Morse-Cerf Theory
Morse-Cerf theory considers a one-parameter family of smooth functions defined on a manifold and studies the evolution of their critical points with the parameter. This paper presents an adaptation of Morse-Cerf theory to a family of piecewise-linear (PL) functions. The vertex diagram and Cerf diagram are introduced as representations of the evolution of critical points of the PL function. The characterization of a crossing in the vertex diagram based on the homology of the lower links of verti…

@UP8@mastodon.social
2025-08-01 11:42:34

⏱️ Poor man's bitemporal data system in SQLite and Clojure
#database

diagram with a black background and numerous arcs going in different directions with a yellow arc passing throiugh the middle and other red, blue and purple arcs with circles with texts pointing to particular points

Poor man's bitemporal data system in SQLite and Clojure
On trying to mash up SQLite with ideas stolen from Accountants, Clojure, Datomic, XTDB, Rama, and Local-first-ers, to satisfy Henderson's Tenth Law. Viz., to make a sufficiently complicated data system containing an ad-hoc, informally-specified, bug-ridden, slow implementation of half of a bitemporal database. Because? Because laying about on a hammock, contemplating hopelessly complected objects like Current Databases isn't just for the Rich man.

@lysander07@sigmoid.social
2025-06-02 07:24:17

At the Semantic Digital Humanities 2025 Workshop, Jose Maldonado-Rodríguez is presenting "Natural Language Querying for Humanities #KnowledgeGraphs A case study on the GOLEM KG". Main contribution is a bilingual dataset (English-Spanish) specifically designed to evaluate automatic text-to-SPARQL translation systems for GOLEM, a specialized humanities KG.
paper:

Jose Maldonado-Rodríguez is presenting "Natural Language Querying for Humanities #KnowledgeGraphs A case study on the GOLEM KG" The image shows a presentation slide in a conference room. The slide is titled "Motivation" and discusses bridging the gap between Knowledge Graphs and non-technical researchers. It highlights a user-friendly way of extracting data from structured graphs. The slide features a diagram illustrating a bridge labeled "Text-to-SPARQL" connecting "Non-technical researchers"…
@arXiv_astrophHE_bot@mastoxiv.page
2025-07-02 09:40:00

Energy-dependent temporal study of GX 13 1 with AstroSat observation
Arbind Pradhan, Sree Bhattacherjee, Biplob Sarkar
arxiv.org/abs/2507.00626

Energy-dependent temporal study of GX 13+1 with AstroSat observation
In this work, we performed an energy-dependent study of low-frequency oscillations observed in GX 13+1 using \textit{AstroSat} (Large Area X-ray Proportional Counter and Soft X-ray Telescope). The hardness-intensity diagram (HID) of the observation resembles a `$ν$'-shaped track, while the color-color diagram exhibits a `$<$'-shaped track, similar to the horizontal and normal branches of the Z source. We conducted flux-resolved temporal studies focusing on low-frequency variability and divided…

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-07-31 09:44:21

aLLoyM: A large language model for alloy phase diagram prediction
Yuna Oikawa, Guillaume Deffrennes, Taichi Abe, Ryo Tamura, Koji Tsuda
arxiv.org/abs/2507.22558

aLLoyM: A large language model for alloy phase diagram prediction
Large Language Models (LLMs) are general-purpose tools with wide-ranging applications, including in materials science. In this work, we introduce aLLoyM, a fine-tuned LLM specifically trained on alloy compositions, temperatures, and their corresponding phase information. To develop aLLoyM, we curated question-and-answer (Q&A) pairs for binary and ternary phase diagrams using the open-source Computational Phase Diagram Database (CPDDB) and assessments based on CALPHAD (CALculation of PHAse Diagr…

@arXiv_mathLO_bot@mastoxiv.page
2025-06-02 10:04:31

This arxiv.org/abs/2402.11852 has been replaced.
initial toot: mastoxiv.page/@arXiv_mat…

Forcing techniques for Cichoń's Maximum: Lecture notes for the mini-course at the University of Vienna
Cichoń's diagram describes the connections between combinatorial notions related to measure, category, and compactness of sets of irrational numbers. In the second part of the 2010's, Goldstern, Kellner and Shelah constructed a forcing model of Cichoń's Maximum (meaning that all non-dependent cardinal characteristics are pairwise different) by using large cardinals. Some years later, we eliminated this large cardinal assumption. In this mini-course, we explore the forcing techniques to constr…

@arXiv_mathCO_bot@mastoxiv.page
2025-07-01 10:21:53

The monomial expansions for modified Macdonald polynomials
Emma Yu Jin, Xiaowei Lin
arxiv.org/abs/2506.23373 arxiv.or…

The monomial expansions for modified Macdonald polynomials
We discover a family $A$ of sixteen statistics on fillings of any given Young diagram and prove new combinatorial formulas for the modified Macdonald polynomials, that is, $$\tilde{H}_λ(X;q,t)=\sum_{σ\in T(λ)}x^σq^{maj(σ)}t^{η(σ)}$$ for each statistic $η\in A$. Building upon this new formula, we establish four compact formulas for the modified Macdonald polynomials, namely, $$\tilde{H}_λ(X;q,t)=\sum_σd_{\varepsilon}(σ)x^σq^{maj(σ)}t^{η(σ)}$$ which is summed over all canonical or …

@arXiv_mathGT_bot@mastoxiv.page
2025-07-02 08:19:40

Danceability of twisted virtual knots
Sol Addison, Nancy Scherich, Lila Snodgrass
arxiv.org/abs/2507.00988 arxiv.org/…

Danceability of twisted virtual knots
Over the years, several Bridges papers have delved into the concept of danceability of a knot diagram. Inspired by dancing on non-orientable surfaces, in this paper, we expand danceability to twisted virtual knot diagrams. This paper is accompanied by a Math-Dance video which can be found at https://youtu.be/G4u2xMK-fxU.

@arXiv_physicsedph_bot@mastoxiv.page
2025-07-30 08:10:21

Real-time quantitative measurement of a Stirling engine P-V diagram
Nikolai I. Lesack, Hiroko Nakahara, Jake S. Bobowski
arxiv.org/abs/2507.21361

Real-time quantitative measurement of a Stirling engine P-V diagram
This paper describes simple modifications to a Stirling-type heat engine that allow its P-V diagram to be measured. The main advantage of our approach is that a calibrated P-V diagram can be measured and displayed in real time as the engine is running. Our implementation uses a relatively inexpensive, but high-quality, gamma-type Stirling engine designed for demonstrations. The only modifications required to the as-purchased engine are a single hole drilled in the top plate to accommodate a pre…

@arXiv_astrophSR_bot@mastoxiv.page
2025-07-01 10:22:13

Anchoring Stellar Age Indicators: A Cross-Calibration of [C/N] and Gyrochronology Ages via the Age-Velocity-Dispersion Relation
Yuxi Lu, Marc H. Pinsonneault, Yuan-Sen Ting, Phil R. Van-Lane, John D Roberts, Jamie Tayar, Alexander Stone-Martinez
arxiv.org/abs/2506.24010

Anchoring Stellar Age Indicators: A Cross-Calibration of [C/N] and Gyrochronology Ages via the Age-Velocity-Dispersion Relation
Determining stellar ages is challenging, as it depends on other stellar parameters in a non-linear way and often relies on stellar evolution models to infer the underlying relation between these parameters and age. This complexity increases when comparing different age-dating methods, as they rely on distinct indicators and are often applicable to non-overlapping regions of the color-magnitude diagram. Moreover, many empirical calibration methods rely on pre-determined ages, often from open clu…

@arXiv_hepph_bot@mastoxiv.page
2025-09-01 09:31:42

Removing cutoff artifacts in the NJL model by a Renormalization Group consistent treatment
Hosein Gholami, Marco Hofmann, Michael Buballa
arxiv.org/abs/2508.21735

Removing cutoff artifacts in the NJL model by a Renormalization Group consistent treatment
We summarize how a renormalization-group (RG)-consistent treatment removes well-known artifacts in NJL-model descriptions of color-superconducting quark matter. We introduce two RG-consistent schemes, "minimal" and "massless", and present analytic solutions for the diquark gap at $T=0$ and for the phase boundary $T_c(μ)$ in symmetric massless matter, representing the high-density limit of the model. We compare the pairing gaps, phase diagram, and speed of sound with results obtained using conv…

@arXiv_condmatsoft_bot@mastoxiv.page
2025-07-31 08:46:41

Complex topologies in phase separated droplets predicted from universal phase diagram
Amit Kumar, Gary H. Karpen, Samuel A. Safran
arxiv.org/abs/2507.22860

Complex topologies in phase separated droplets predicted from universal phase diagram
Phase separation of two phase separating solutes in a common solvent can result in mesoscale (micron-sized) droplets with complex topologies of the domains of each solute within each droplet. Such topologies have been observed in-vitro in systems of chromatin oligomers, biomolecular condensates, and polymeric mixtures. In these systems the solutes phase separate from the solvent into droplets due to the relatively large free energy gain, which includes the energies and entropies of mixing with …

@arXiv_astrophCO_bot@mastoxiv.page
2025-07-02 08:22:30

Symmetry-protected conservation of superhorizon inflationary perturbations to all loops
Cheng-Jun Fang, Zhen-Hong Lyu, Chao Chen, Zong-Kuan Guo
arxiv.org/abs/2507.00077

Symmetry-protected conservation of superhorizon inflationary perturbations to all loops
We demonstrates that the single-field inflation field system exhibits a symmetry that constrains its evolution via the Ward identity even for non-attractor inflation. By analyzing loop diagram structures, we derive a superhorizon conserved quantity directly related to the two-point correlation function of curvature perturbations, generalizing previous one-loop results to arbitrary loop orders. This symmetry-based approach provides a framework for understanding quantum conservation laws beyond t…

@arXiv_grqc_bot@mastoxiv.page
2025-08-01 09:49:51

The Construction and Application of Penrose Diagrams, with a Focus on the Maximally Analytically Extended Schwarzschild Spacetime
Christian R\"oken
arxiv.org/abs/2507.23514

The Construction and Application of Penrose Diagrams, with a Focus on the Maximally Analytically Extended Schwarzschild Spacetime
We present a detailed, mathematically rigorous description of the construction procedure of Penrose diagrams for the example of the maximal analytic extension of the exterior Schwarzschild spacetime. To this end, we first outline the basic idea underlying Penrose diagrams, state the general requirements on the spacetimes to be visualized, and give a definition of Penrose diagrams. We then construct the Penrose diagram of the maximally analytically extended Schwarzschild spacetime and discuss th…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-02 07:30:12

Chemical tagging of tidal tail star candidates of NGC 6362
Andr\'es E. Piatti
arxiv.org/abs/2505.24522 arxiv.org/…

Chemical tagging of tidal tail star candidates of NGC 6362
The inner Milky Way disk globular cluster NGC~6362 appears to exhibit tidal tails composed of stars that have proper motions and positions in the color-magnitude diagram similar to those of cluster stars. Because recent results seem also to show that these stars are distributed across the regions least affected by interstellar absorption and reproduce the observed composite star field density map, we carried out a detailed spectroscopic analysis of a number of chemical element abundances of tid…

@detondev@social.linux.pizza
2025-07-30 05:20:01

have yall seen "baseball as esoteric ritual" yet
southerncrossreview.org/53/dia

occult baseball diagram
@arXiv_condmatmeshall_bot@mastoxiv.page
2025-07-01 09:56:23

Controlling the quantum phase transition in a double quantum dot Josephson junction via interactions
Cong Li, Yiyan Wang, Bing Dong
arxiv.org/abs/2506.23636

Controlling the quantum phase transition in a double quantum dot Josephson junction via interactions
In this work, we employ a surrogate BCS model with discrete energy levels to investigate a hybrid system comprising two quantum dots (QD1 and QD2), where QD1 is tunnel-coupled to two superconducting leads. Through exact diagonalization of this system, we obtain numerically exact solutions that enable rigorous computation of key physical quantities. Our analysis reveals a rich phase diagram featuring multiple controllable phase transitions mediated by quantum dot interactions. Specifically, the …

@arXiv_mathOC_bot@mastoxiv.page
2025-07-29 11:10:01

Fundamental diagram constrained dynamic optimal transport via proximal splitting methods
Anqi Dong, Karl Henrik Johansson, Johan Karlsson
arxiv.org/abs/2507.20717

Fundamental diagram constrained dynamic optimal transport via proximal splitting methods
Optimal transport has recently been brought forward as a tool for modeling and efficiently solving a variety of flow problems, such as origin-destination problems and multi-commodity flow problems. Although the framework has shown to be effective for many large scale flow problems, the formulations typically lack dynamic properties used in common traffic models, such as the Lighthill-Whitham-Richards model. In this work, we propose an optimal transport framework that includes dynamic constraint…

@arXiv_quantph_bot@mastoxiv.page
2025-06-25 08:22:19

Dissipative quantum North-East-Center model: steady-state phase diagram, universality and nonergodic dynamics
Pietro Brighi, Alberto Biella
arxiv.org/abs/2506.19011

Dissipative quantum North-East-Center model: steady-state phase diagram, universality and nonergodic dynamics
In this work we study the dissipative quantum North-East-Center (NEC) model: a two-dimensional spin-1/2 lattice subject to chiral, kinetically constrained dissipation and coherent quantum interactions. This model combines kinetic constraints and chirality at the dissipative level, implementing local incoherent spin flips conditioned by an asymmetric majority-vote rule. Through a cluster mean-field approach, we determine the steady-state phase diagram of the NEC model under different Hamiltonian…

@khalidabuhakmeh@mastodon.social
2025-07-24 15:55:23

I know folks have been struggling to understand AI in the modern development stack, so I created an easy-to-follow diagram. Hope this helps someone 🤗

User to AI to Money Bag and Fire and AI to Poop Emoji diagram with title “Modern AI Solution”
@funkvolk@mastodon.social
2025-07-29 13:25:23

Don't you ever forget the "I want to do this"-part.

Diagram: I want to do that... option 1: do it option 2: but I‘m scared continuation to option 2: do it scared
@stsquad@mastodon.org.uk
2025-08-22 17:49:34

Ok that #fork diagram is looking a lot better than the last one. Fixed a lot of bugs in the data processing and I am starting to see some useful #information in the diagram. #qemu

A network diagram showing the relationship between QEMU versions and forks of it.
@arXiv_astrophSR_bot@mastoxiv.page
2025-06-02 07:30:35

The Samples and Binary Fractions of Red Supergiant in M31 and M33 by the HST
Min Dai, Shu Wang, Biwei Jiang, Ying Li
arxiv.org/abs/2505.24559

The Samples and Binary Fractions of Red Supergiant in M31 and M33 by the HST
The binarity of red supergiants (RSGs) influences their evolution and the fate of supernovae. We investigate the binary fraction of RSGs in the Andromeda Galaxy (M31) and Triangulum Galaxy (M33) using photometry from the Hubble Space Telescope (HST), which offers high spatial resolution to resolve more RSGs. A preliminary step involves identifying a reliable and complete RSG sample using the F110W $-$ F160W versus F160W diagram, yielding 2,612 RSGs from the Panchromatic Hubble Andromeda Treasur…

@arXiv_mathCT_bot@mastoxiv.page
2025-07-30 13:00:06

Replaced article(s) found for math.CT. arxiv.org/list/math.CT/new
[1/1]:
- Growth problems in diagram categories
Jonathan Gruber, Daniel Tubbenhauer

@arXiv_csAI_bot@mastoxiv.page
2025-08-22 09:33:20

See it. Say it. Sorted: Agentic System for Compositional Diagram Generation
Hantao Zhang, Jingyang Liu, Ed Li
arxiv.org/abs/2508.15222 arxi…

See it. Say it. Sorted: Agentic System for Compositional Diagram Generation
We study sketch-to-diagram generation: converting rough hand sketches into precise, compositional diagrams. Diffusion models excel at photorealism but struggle with the spatial precision, alignment, and symbolic structure required for flowcharts. We introduce See it. Say it. Sorted., a training-free agentic system that couples a Vision-Language Model (VLM) with Large Language Models (LLMs) to produce editable Scalable Vector Graphics (SVG) programs. The system runs an iterative loop in which a …

@ronaldsnijder@mastodon.social
2025-08-01 16:29:16

So... Is there already a #FlowChartFriday? How about this chart on uploading #OpenAccess #books into the #OAPEN

A complex diagram describing several possible choices concerning bulk upload of books
@arXiv_condmatstrel_bot@mastoxiv.page
2025-06-02 07:32:06

Nematicity in iron pnictides: phase competition and emergent symmetry
Yiming Wang, Changle Liu, Shan Wu, Jianda Wu, Qimiao Si, Rong Yu
arxiv.org/abs/2505.24847

Nematicity in iron pnictides: phase competition and emergent symmetry
The phase diagram of iron-based superconductors contains a host of electronic orders, which are intimately connected with their superconductivity. Here we analyze the fluctuations of one type of nematic order in another. Our analysis leads to an emergent U(1) symmetry at a first-order transition between a nematic phase and a $C_4$-symmetric charge-ordered phase. We characterize the continuous symmetry in terms of a certain hidden Lie algebra that links the different orders. This emergent symmet…

@fanf@mendeddrum.org
2025-06-24 17:42:03

from my link log —
Bluefishjs: a diagram drawing framework for JavaScript.
bluefishjs.org/
saved 2025-04-25 dotat.at/:/FCG…

Bluefish
A diagramming library for the web

@arXiv_mathQA_bot@mastoxiv.page
2025-07-30 08:23:21

Irreducible representations of pointed Hopf algebras of type $A_2$
Agust\'in Garc\'ia Iglesias, Alfio Antonio Rodriguez
arxiv.org/abs/2507.21978

Irreducible representations of pointed Hopf algebras of type $A_2$
We classify the irreducible representations of a family of finite-dimensional pointed liftings $H_λ$ of the Nichols algebra associated with the diagram $A_2$ with parameter $q=-1$. We show that these algebras have infinite representation type and construct an indecomposable $H_λ$-module of dimension $n$ for each $n\in\mathbb{N}$. Finally, we study a semisimple category $\underline{\operatorname{Rep}} H_λ$ arising as a quotient of $\operatorname{Rep} H_λ$.

@arXiv_statAP_bot@mastoxiv.page
2025-07-01 10:03:13

Rothman diagrams: the geometry of association measure modification and collapsibility
Eben Kenah
arxiv.org/abs/2506.23927

Rothman diagrams: the geometry of association measure modification and collapsibility
Here, we outline how Rothman diagrams provide a geometric perspective that can help epidemiologists understand the relationships between effect measure modification (which we call association measure modification), collapsibility, and confounding. A Rothman diagram plots the risk of disease in the unexposed on the x-axis and the risk in the exposed on the y-axis. Crude and stratum-specific risks in the two exposure groups define points in the unit square. When there is modification of a measure…

@arXiv_mathCO_bot@mastoxiv.page
2025-06-30 09:09:00

Identifying Orbit Lengths for Promotion
Elise Catania, Jack Kendrick, Heather M. Russell, Julianna Tymoczko
arxiv.org/abs/2506.22306

Identifying Orbit Lengths for Promotion
In this work we study Schützenberger's promotion operator on standard Young tableaux via a corresponding graphical construction known as $m-$diagrams. In particular, we prove that certain internal structures of SYT are preserved under promotion and correspond to distinct components of $m-$diagrams. By treating these structures as atomic parts of the $m-$diagram, we provide a simple algorithm for computing the promotion orbit length of rectangular SYT. We conclude the paper by applying our resu…

@arXiv_mathRT_bot@mastoxiv.page
2025-08-26 08:45:26

Integral bases for twisted multiloop algebras with diagram automorphism actions
Angelo Bianchi, Samuel Chamberlin
arxiv.org/abs/2508.18063 …

Integral bases for twisted multiloop algebras with diagram automorphism actions
We construct integral forms for the universal enveloping algebras of certain twisted multiloop algebras and explicit integral bases for these integral forms.

@khalidabuhakmeh@mastodon.social
2025-08-19 13:18:42

Pro tip: If you’re creating Mermaid sequence diagrams, you can order the elements by using the `participant` keyword at the start of the diagram definition.

Mermaid sequence diagram noting the Passkey creation process in an IDE window with a preview of the diagram on the right.
@arXiv_csCR_bot@mastoxiv.page
2025-08-28 08:45:21

Rethinking Denial-of-Service: A Conditional Taxonomy Unifying Availability and Sustainability Threats
Mark Dorsett, Scott Man, Tim Koussas
arxiv.org/abs/2508.19283

Rethinking Denial-of-Service: A Conditional Taxonomy Unifying Availability and Sustainability Threats
This paper proposes a unified, condition-based framework for classifying both legacy and cloud-era denial-of-service (DoS) attacks. The framework comprises three interrelated models: a formal conditional tree taxonomy, a hierarchical lattice structure based on order theory, and a conceptual Venn diagram. At its core, the taxonomy introduces six observable conditions (C0-C5) grounded in real-world attack behaviours, including source distribution, traffic volume, infrastructure targeting, and fin…

@StephenRees@mas.to
2025-08-25 17:17:25

TransLink seeks feedback on Metrotown-North Shore Bus Rapid Transit
Input will help decide between two route options
TransLink is launching public engagement on the future Bus Rapid Transit (BRT) route between Metrotown and the North Shore. Members of the public are being asked to provide feedback on the project, rank features that are most important to them, and pick which of the two routes they prefer.

A transit route diagram with 2 alternatives in North Burnaby for the proposed new bus service
@arXiv_condmatsuprcon_bot@mastoxiv.page
2025-07-30 08:33:02

Multi-Gap superconductivity in HgS under pressure
Pietro Maria Forcella, Cesare Tresca, Antonio Sanna, Gianni Profeta
arxiv.org/abs/2507.21869

Multi-Gap superconductivity in HgS under pressure
Mercury chalcogenides are a class of materials that exhibit diverse structural phases under pressure, leading to a range of exotic physical properties, including topological phases and chiral phonons. In particular, the phase diagram of mercury sulfide (HgS) remains difficult to characterize, with significant uncertainty surrounding the transition pressure between phases. Based on recent experimental results, we employ Density Functional Theory and Superconducting Density Functional Theory to i…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-08-01 07:53:41

Spin-Polaron Mediated Superconductivity in Doped Chern Antiferromagnets
Xuepeng Wang, J. F. Mendez-Valderrama, Johannes S. Hofmann, Debanjan Chowdhury
arxiv.org/abs/2507.22971

Spin-Polaron Mediated Superconductivity in Doped Chern Antiferromagnets
The study of interacting topological bands with a tunable bandwidth offers a unique platform to study the interplay of intertwined orders and emergent non-electronic excitations. Here we design a time-reversal symmetric and sign-problem-free electronic model with tunable Chern bands carrying valley-contrasting Chern number, interacting via competing (anti-)ferromagnetic interactions. Using numerically exact quantum Monte-Carlo computations, we analyze the many-body phase-diagram as a function o…

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-06-30 09:21:30

Prediction of A15 Tilt Grain Boundary Structures
Wenwen Zou, Zihan Su, Juan Zhang, Kai Jiang
arxiv.org/abs/2506.21954

Prediction of A15 Tilt Grain Boundary Structures
In this work, we present a theoretical method to predict all coincidence site lattice (CSL) tilt grain boundaries (GBs) in A15, especially high-$Σ$ CSL GBs. This method includes a modified Farey diagram (MFD) and a computational framework based on the 3D phase field crystal model. Applied to [001] CSL symmetric tilt grain boundaries (STGBs) in A15, this method identifies building blocks of A15 GBs, known as structural units (SUs). The MFD predicts the quantity and proportion of SUs within GBs.…

@arXiv_condmatstatmech_bot@mastoxiv.page
2025-07-29 09:13:41

Physical Constraints on the Rhythmicity of the Biological Clock
YeongKyu Lee, Changbong Hyeon
arxiv.org/abs/2507.20750 arxiv.org/pdf/2507.2…

Physical Constraints on the Rhythmicity of the Biological Clock
Circadian rhythms in living organisms are temporal orders emerging from biochemical circuits driven out of equilibrium. Here, we study how the rhythmicity of a biochemical clock is shaped using the KaiABC system. A phase diagram constructed as a function of KaiC and KaiA concentrations reveals a sharply bounded limit-cycle region, which naturally explains arrhythmia upon protein over-expression. Beyond the Hopf bifurcation, intrinsic noise enables regular oscillation via coherence resonance. Wi…

@arXiv_condmatquantgas_bot@mastoxiv.page
2025-07-30 08:11:02

Axially confined binary quantum droplets: ground states and central vortices
Srivatsa B. Prasad, Thomas P. Billam, Nick G. Parker
arxiv.org/abs/2507.21805

Axially confined binary quantum droplets: ground states and central vortices
Ultracold miscible mixtures of bosonic gases have been observed to form quantum droplet states stabilized by beyond-mean-field quantum fluctuations. Here we study the properties of the droplets when subjected to harmonic trapping in one dimension, using a combination of numerical, variational and analytical approaches. We map out the phase diagram between bound droplets and the unbound gas state and the form of the ground states. We additionally consider how the droplet solutions are modified b…

@inthehands@hachyderm.io
2025-06-06 22:08:10

Hey, folks who understand alt text and limited vision accessibility:
I have need to write alt text for the diagram below. The alt text needs to be comprehensible to somebody who is encountering this kind of diagram for the ••very first time••. I could describe the images using the relevant jargon, but that would only serve people who already know the thing this activity is teaching them!
Any suggestions for how I could write good alt text for something like this? Is it possible? (The horizontal black bars are minus signs, i.e. subtraction. This is clear from context in the text, but probably not clear in the image.)
PLEASE NOTE: I am looking for people with ••relevant accessibility expertise••, not just random best shots from people who (like me) don’t really know much about this kind of problem.

@arXiv_mathNA_bot@mastoxiv.page
2025-07-24 08:35:50

Design and analysis of twisted and BGG Stokes-de Rham polytopal complexes
Daniele A. Di Pietro, J\'er\^ome Droniou, Kaibo Hu, Arax Leroy
arxiv.org/abs/2507.17333

Design and analysis of twisted and BGG Stokes-de Rham polytopal complexes
We design a discrete Bernstein--Gelfand--Gelfand (BGG) diagram on polygonal meshes based on the DDR framework; the diagram is made of a discrete Stokes polygonal complex and a tensorised Discrete De Rham complex, and the BGG construction leads to a novel elasticity complex applicable on generic polygonal meshes. Complete homological and analytical properties of the discrete Stokes complex are established, including primal and adjoint consistency estimates as well as Poincaré inequalities. Homo…

@arXiv_mathph_bot@mastoxiv.page
2025-06-19 09:36:03

Dynamical Phase Diagram of the REM under independent spin-flips
Chokri Manai, Simone Warzel
arxiv.org/abs/2506.15353 …

Dynamical Phase Diagram of the REM under independent spin-flips
We study the energy landscape of the Random Energy model (REM) integrated along trajectories of the simple random walk on the hypercube. We show that the quenched cumulant generating function of the time integral of the REM energy undergoes phase transitions in the large $N$ limit for trajectories of any time extent, and identify phases distinguished by the activity and value of the time integral. This is achieved by relating the dynamical behavior to the spectral properties of Hamiltonians ass…

@philip@mastodon.mallegolhansen.com
2025-07-22 00:42:47

@… Painfully familiar diagram.

@qurlyjoe@mstdn.social
2025-07-21 02:46:17

A map of #Fediverse shows every instance and the connections to all the other instances it’s connected to, as a snapshot or live-action. Non-federated instances might or might be shown, depends what you’re looking for and how you’re looking. A wire-frame map could show different skins maybe, to suit the purpose. Kind of like a wire-frame diagram of a brain’s network of synapses and shit.

@arXiv_astrophHE_bot@mastoxiv.page
2025-06-26 09:12:10

The peak flux of long gamma-ray bursts in the E$_{\rm p,i}$--L$_{\rm iso}$ diagram and in the classification
Guangxuan Lan, Jean-Luc Atteia
arxiv.org/abs/2506.20374

The peak flux of long gamma-ray bursts in the E$_{\rm p,i}$--L$_{\rm iso}$ diagram and in the classification
The E$_{\rm p,i}$--L$_{\rm iso}$ correlation of long gamma-ray bursts (LGRBs) is regarded as a fundamental correlation for standardizing LGRBs to probe cosmology and constrain LGRB physics. However, this correlation may be affected by potential selection effects which are likely overlooked in the current small LGRB redshift sample. In this work, we simulate a large LGRB sample that reflects the observed situation, aiming to study the impact of peak flux $P$ on the observed LGRB E$_{\rm p,i}$--L…

@arXiv_condmatmeshall_bot@mastoxiv.page
2025-07-31 08:58:21

Universal Magnetic Phases in Twisted Bilayer MoTe$_2$
Weijie Li, Evgeny Redekop, Christiano Wang Beach, Canxun Zhang, Xiaowei Zhang, Xiaoyu Liu, Will Holtzmann, Chaowei Hu, Eric Anderson, Heonjoon Park, Takashi Taniguchi, Kenji Watanabe, Jiun-haw Chu, Liang Fu, Ting Cao, Di Xiao, Andrea F. Young, Xiaodong Xu
arxiv.org/abs/2507.2235…

Universal Magnetic Phases in Twisted Bilayer MoTe$_2$
Twisted bilayer MoTe$_2$ (tMoTe$_2$) has emerged as a robust platform for exploring correlated topological phases, notably supporting fractional Chern insulator (FCI) states at zero magnetic field across a wide range of twist angles. The evolution of magnetism and topology with twist angle remains an open question. Here, we systematically map the magnetic phase diagram of tMoTe$_2$ using local optical spectroscopy and scanning nanoSQUID-on-tip (nSOT) magnetometry. We identify spontaneous ferrom…

@arXiv_hepph_bot@mastoxiv.page
2025-07-30 10:05:11

Net-Charge Fluctuations in Finite Volume PNJL Model: A Probe for the QCD Critical Point
Amal Sarkar, Paramita Deb, Bidhan Mandal, Raghava Varma
arxiv.org/abs/2507.21744

Net-Charge Fluctuations in Finite Volume PNJL Model: A Probe for the QCD Critical Point
The QCD Critical Point is a pivotal feature of the phase diagram of strongly interacting matter. Signatures of the critical point are expected to manifest through the non-monotonic behavior of higher-order moments of conserved quantities, such as net-baryon ($ΔB$), net-charge ($ΔQ$), and net-strangeness ($ΔS$), as a function of collision energy. These moments are connected to the thermodynamic susceptibilities, as well as to the correlation length developed in the system, which diverges at t…

@whophd@ioc.exchange
2025-06-20 08:24:52

What can I use to make this? Hopefully easily (as in, the lines all move in a group if I need to reposition), but honestly I don't care if not — I just want it to know about curves and gaps, positioning nicely by default.
#maps #diagram

A cropped screenshot of a diagrammatic road map, tall and narrow. It has a plain white background with three smaller horizontal roads across the top, middle and bottom, coloured gray except the top one in red. Down the middle are two "motorway" style roads using parallels pairs of lines, instead of single lines, and they join in a T-junction in the middle, as the bottom one turns off to the right in parallel with middle horizontal road. The bottom motorway is coloured green and the top one i…
@arXiv_physicssocph_bot@mastoxiv.page
2025-08-28 08:45:41

Calibration and uncertainty quantification of macroscopic fundamental diagrams
Wenfei Ma, Yunping Huang, Nan Zheng, Tianlu Pan, Renxin Zhong
arxiv.org/abs/2508.19526

Calibration and uncertainty quantification of macroscopic fundamental diagrams
Traffic congestion occurs as travel demand exceeds network capacity, necessitating a thorough understanding of network capacity for effective traffic control and management. The macroscopic fundamental diagram (MFD) provides an efficient framework for quantifying network capacity. However, empirical MFDs exhibit considerable data scatter and uncertainty. In this paper, we propose a mathematical program that simultaneously calibrates the MFD and quantifies the uncertainty associated with data sc…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-06-02 07:31:08

Quantum anomalous Hall effects and Hall crystals at fractional filling of helical trilayer graphene
Sen Niu, Jason Alicea, D. N. Sheng, Yang Peng
arxiv.org/abs/2505.24146 …

Quantum anomalous Hall effects and Hall crystals at fractional filling of helical trilayer graphene
Helical trilayer graphene realizes a versatile moiré system in which anomalous Hall effects have been recently observed at integer and fractional fillings. Focusing on helical trilayers near the magic angle and under a substrate potential, we demonstrate that an isolated higher Chern band with Chern number $|C_{band}|=2$ emerges, enabling the exploration of many-body states beyond the conventional Landau level paradigm. We use exact diagonalization to predict a rich phase diagram of …

@arXiv_mathAT_bot@mastoxiv.page
2025-08-26 15:03:46

Replaced article(s) found for math.AT. arxiv.org/list/math.AT/new
[1/1]:
- Idempotents and homology of diagram algebras
Guy Boyde

@arXiv_csCG_bot@mastoxiv.page
2025-06-12 07:19:29

Power Diagram Enhanced Adaptive Isosurface Extraction from Signed Distance Fields
Pengfei Wang, Ziyang Zhang, Wensong Wang, Shuangmin Chen, Lin Lu, Shiqing Xin, Changhe Tu
arxiv.org/abs/2506.09579

Power Diagram Enhanced Adaptive Isosurface Extraction from Signed Distance Fields
Extracting high-fidelity mesh surfaces from Signed Distance Fields has become a fundamental operation in geometry processing. Despite significant progress over the past decades, key challenges remain namely, how to automatically capture the intricate geometric and topological structures encoded in the zero level set of SDFs. In this paper, we present a novel isosurface extraction algorithm that introduces two key innovations: 1. An incrementally constructed power diagram through the addition of…

@arXiv_hepth_bot@mastoxiv.page
2025-07-09 10:02:42

The setting sun diagram with complex external momenta
David Dudal, Duifje Maria van Egmond, Gastao Krein
arxiv.org/abs/2507.05921

The setting sun diagram with complex external momenta
We revisit the issue of analytically continuing Feynman integrals from Euclidean to Minkowski signature, allowing for generic complex momenta. Although this is well-known in terms of the Källén-Lehmann representation, we consider potential alternative takes on the same problem and discuss how these are not necessarily equivalent to the Källén-Lehmann integral outcome. We present our analysis for a simple enough case -- the setting sun diagram in $d=2$ with a real mass -- but already with an…

@arXiv_nlinAO_bot@mastoxiv.page
2025-07-30 08:30:12

Higher-Order Kuramoto Oscillator Network for Dense Associative Memory
Jona Nagerl, Natalia G. Berloff
arxiv.org/abs/2507.21984 arxiv.org/pd…

Higher-Order Kuramoto Oscillator Network for Dense Associative Memory
Networks of phase oscillators can serve as dense associative memories if they incorporate higher-order coupling beyond the classical Kuramoto model's pairwise interactions. Here we introduce a generalized Kuramoto model with combined second-harmonic (pairwise) and fourth-harmonic (quartic) coupling, inspired by dense Hopfield memory theory. Using mean-field theory and its dynamical approximation, we obtain a phase diagram for dense associative memory model that exhibits a tricritical point at w…

@pbloem@sigmoid.social
2025-07-18 09:25:22

Now out in #TMLR:
🍇 GRAPES: Learning to Sample Graphs for Scalable Graph Neural Networks 🍇
There's lots of work on sampling subgraphs for GNNs, but relatively little on making this sampling process _adaptive_. That is, learning to select the data from the graph that is relevant for your task.
We introduce an RL-based and a GFLowNet-based sampler and show that the approach perf…

A diagram of the GRAPES pipeline. It shows a subgraph being sampled in two steps and being fed to a GNN, with a blue line showing the learning signal. The caption reads Figure 1: Overview of GRAPES. First, GRAPES processes a target node (green) by computing node inclusion probabilities on its 1-hop neighbors (shown by node color shade) with a sampling GNN. Given these probabilities, GRAPES samples k nodes. Then, GRAPES repeats this process over nodes in the 2-hop neighborhood. We pass the sampl…
A results table for node classification on heterophilious graphs. Table 2: F1-scores (%) for different sampling methods trained on heterophilous graphs for a batch size of 256, and a sample size of 256 per layer. We report the mean and standard deviation over 10 runs. The best values among the sampling baselines (all except GAS) are in bold, and the second best are underlined. MC stands for multi-class and ML stands for multi-label classification. OOM indicates out of memory.
Performance of samples vs sampling size showing that GRAPES generally performs well across sample sizes, while other samplers often show more variance across sample sizes. The caption reads Figure 4: Comparative analysis of classification accuracy across different sampling sizes for sampling baseline and GRAPES. We repeated each experiment five times: The shaded regions show the 95% confidence intervals.
A diagrammatic illustration of a graph classification task used in one of the theorems. The caption reads Figure 9: An example of a graph for Theorem 1 with eight nodes. Red edges belong to E1, features xi and labels yi are shown beside every node. For nodes v1 and v2 we show the edge e12 as an example. As shown, the label of each node is the second feature of its neighbor, where a red edge connects them. The edge homophily ratio is h=12/28 = 0.43.
@arXiv_astrophGA_bot@mastoxiv.page
2025-07-24 09:54:59

Through the fog: a complementary optical galaxy classification scheme for 'intermediate' redshifts
Duarte Mu\~noz Santos, Cirino Pappalardo, Henrique Miranda, Jos\'e Afonso, Israel Matute, Rodrigo Carvajal, Catarina Lobo, Patricio Lagos, Polychronis Papaderos, Ana Paulino-Afonso, Abhishek Chougule, Davi Barbosa, Bruno Louren\c{c}o

Through the fog: a complementary optical galaxy classification scheme for 'intermediate' redshifts
Understanding galaxy classification depends on our interpretation of their spectra. To date, the hydrogen Balmer lines remain the most consistent way to classify galaxies, but at 'intermediate' redshifts ($1.5 < z < 2.5$), galaxies are hard to parse in the BPT diagram (and its siblings) because the crucial H$α$ emission line is out of range of ground-based optical spectographs. In this work, we re-explore a known diagram, which we call the OB-I diagram, that compares the equivalent width of H$…

@arXiv_astrophIM_bot@mastoxiv.page
2025-06-17 11:26:02

NIR filter transformations across the HR diagram: JWST, Roman, and Euclid
M. J. Durbin, R. L. Beaton, A. J. Monson, B. Swidler
arxiv.org/abs/2506.13627

NIR filter transformations across the HR diagram: JWST, Roman, and Euclid
We present new color transformations between select near-infrared filters on JWST/NIRCam, Euclid/NISP, Roman/WFI, HST, and ground-based $izY+IJHK_S$, for a total of 105 unique filter combinations. Additionally, we apply these transformations to predict the color-magnitude relation of the tip of the red giant branch as seen with JWST, Euclid, and Roman based on theoretical results for HST and 2MASS filters; for JWST we find good agreement with empirical results in the literature. We also find ty…

@arXiv_physicsinsdet_bot@mastoxiv.page
2025-06-26 08:50:00

Detectors and Electronics for the CBM experiment at FAIR
Maksym Teklishyn (for the CBM Collaboration)
arxiv.org/abs/2506.20545

Detectors and Electronics for the CBM experiment at FAIR
The Compressed Baryonic Matter (CBM) experiment is a next-generation heavy-ion experiment under development at the future FAIR facility in Darmstadt, Germany. It is designed to explore the QCD phase diagram at high net-baryon densities with unprecedented precision. Operating in fixed-target mode with a continuous beam of up to 11 AGeV for heavy ions and 26 GeV for protons, CBM will investigate rare probes such as multi-strange hyperons, hypernuclei, and dileptons, aiming to identify signatures …

@arXiv_csIT_bot@mastoxiv.page
2025-08-05 08:29:50

New constant-dimension subspace codes from parallel cosets of optimal Ferrers diagram rank-metric codes and multilevel inserting constructions
Gang Wang, Hong-Yang Yao, Fang-Wei Fu
arxiv.org/abs/2508.01258

New constant-dimension subspace codes from parallel cosets of optimal Ferrers diagram rank-metric codes and multilevel inserting constructions
Constant-dimension subspace codes (CDCs), a special class of subspace codes, have attracted significant attention due to their applications in network coding. A fundamental research problem of CDCs is to determine the maximum number of codewords under the given parameters. The paper first proposes the construction of parallel cosets of optimal Ferrers diagram rank-metric codes (FDRMCs) by employing the list of CDCs and inverse list of CDCs. Then a new class of CDCs is obtained by combining the …

@arXiv_astrophHE_bot@mastoxiv.page
2025-08-21 09:19:40

Machine learning classification of black holes in the mass--spin diagram
Nathan Steinle, Samar Safi-Harb
arxiv.org/abs/2508.14316 arxiv.org…

Machine learning classification of black holes in the mass--spin diagram
We present the mass--spin diagram for classifying black holes and studying their formation pathways, providing an analogue to the Hertzsprung-Russell diagram. This allows for black hole evolutionary tracks as a function of redshift, combining formation, accretion, and merger histories for the variety of black hole populations. A realistic black hole continuum constructed from initial mass and spin functions and approximate redshift evolution reveals possible black hole main sequences, such as s…

@arXiv_condmatmeshall_bot@mastoxiv.page
2025-07-31 08:58:11

Anisotropic Magnetism in Gd$_2$B$_5$
Maximilien F. Debbas, Takehito Suzuki, Alex H. Mayo, Mun K. Chan, Joseph G. Checkelsky
arxiv.org/abs/2507.22325

Anisotropic Magnetism in Gd$_2$B$_5$
We report the synthesis of single crystals of Gd$_2$B$_5$ through a ruthenium-gadolinium flux method. The Gd$_2$B$_5$ system is a member of the monoclinic $P21/c$ (No. 14) space group and realizes lattices of gadolinium atoms in the $(1\,0\,0)$ plane. We characterized the sample through orientation-dependent electrical transport, magnetization, magnetic torque, and heat capacity measurements to probe the magnetic anisotropy of the system and map out its phase diagram. Gd$_2$B$_5$ realizes two z…

@arXiv_hepph_bot@mastoxiv.page
2025-07-30 10:04:01

Dynamics of chiral phase transition in a $N_f=2 1$ soft-wall AdS/QCD model
Han Tang, Bin Dong, Nanxiang Wen, Yidian Chen, Danning Li
arxiv.org/abs/2507.21735

Dynamics of chiral phase transition in a $N_f=2+1$ soft-wall AdS/QCD model
We investigate the real-time dynamics of the chiral phase transition in a soft-wall AdS/QCD model, of which the mass plane phase diagram from equilibrium calculation is qualitatively consistent with the so-called Columbia plot. By directly solving the non-equilibrium evolution of the order parameter of the chiral phase transition, i.e. the chiral condensate, we study the thermalization of the QCD matter in different regions of the quark mass plane. It is shown that, when the system is close to …

@catsalad@infosec.exchange
2025-07-19 13:09:25

Internal workings of the Fediverse algorithm

Wankel engine diagram show the internal combustion engine using an eccentric rotary design instead of reciprocating pistons, except everything being pointed out in the figure just says "meow" with the bottom text being "meowing in lobe A and B"
@arXiv_condmatsuprcon_bot@mastoxiv.page
2025-07-30 08:34:31

Superconducting Diode Effect in Weak Localization Regime
Naratip Nunchot, Youichi Yanase
arxiv.org/abs/2507.21897 arxiv.org/pdf/2507.21897

Superconducting Diode Effect in Weak Localization Regime
We study a dirty two-dimensional superconductor with Rashba spin-orbit coupling and in-plane Zeeman fields described by the nonlinear sigma model that includes short-range electron-electron interactions from the Coulomb and Cooper channels. The renormalized Ginzburg-Landau theory, which includes the weak localization effects at the one-loop level, is constructed by using the Keldysh functional formalism. It is shown that the tricritical point appears in the phase diagram. The superconducting di…

@arXiv_mathGT_bot@mastoxiv.page
2025-07-03 08:03:40

Loose rectangular diagram, multi-crossing number, and arc index
Tetsuya Ito
arxiv.org/abs/2507.01404 arxiv.org/pdf/25…

Loose rectangular diagram, multi-crossing number, and arc index
For a non-split multi-crossing diagram $D$ of a link $L$ we show that $α(L)-2 \leq c_2(D) + \sum_{n> 2}(2n-4)c_n(D)$ holds. Here $α(L)$ is the arc index and $c_n(D)$ is the number of $n$-crossings of $D$. This generalizes and subsumes many known inequalities related to multi-crossing numbers. In the course of proof, we introduce a notion of loose rectangular diagram and show that a loose rectangular diagram can be converted to usual rectangular diagram preserving its arc index.

@arXiv_condmatquantgas_bot@mastoxiv.page
2025-06-24 09:50:00

Probing universal phase diagram of dimensional crossover with an atomic quantum simulator
Jinyuan Tian, Zhongcheng Yu, Jing Liu, Chi-Kin Lai, Lorenzo Pizzino, Chengyang Wu, Hongmian Shui, Thierry Giamarchi, Hepeng Yao, Xiaoji Zhou
arxiv.org/abs/2506.18464

Probing universal phase diagram of dimensional crossover with an atomic quantum simulator
Dimensionality is a fundamental concept in physics, which plays a hidden but crucial role in various domains, including condensed matter physics, relativity and string theory, statistical physics, etc. In quantum physics, reducing dimensionality usually enhances fluctuations and leads to novel properties. Owing to these effects, quantum simulators in which dimensionality can be controlled have emerged as a new area of interest. However, such a platform has only been studied in specific regimes …

@arXiv_condmatstrel_bot@mastoxiv.page
2025-08-28 09:25:31

Charge current and phase diagram of the disordered open longer-range Kitaev chain
Emmanuele G. Cinnirella, Andrea Nava, Domenico Giuliano
arxiv.org/abs/2508.19732

Charge current and phase diagram of the disordered open longer-range Kitaev chain
We compute the disorder averaged dc conductance in the non-equilibrium steady state that sets in between a longer-range Kitaev chain and a metallic lead connected to an external reservoir, as a function of the system parameters and of the disorder strength. From our results, we map out the phase diagram of the disordered chain for different types of disorder and discuss the corresponding effects of the interplay between topology and disorder in the system. To do so, we set up a combined analyti…

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-08-26 11:27:46

Evaluating Moment Tensor Potential in Ag-Cu Alloy: Accuracy, Transferability, and Phase Diagram Fidelity
Mashroor S. Nitol, Marco J. Echeverr\'ia Iriarte, Doyl E. Dickel, Saryu J. Fensin
arxiv.org/abs/2508.18129

Evaluating Moment Tensor Potential in Ag-Cu Alloy: Accuracy, Transferability, and Phase Diagram Fidelity
A Moment Tensor Potential (MTP) has been developed for the Cu-Ag binary alloy and its accuracy, transferability, and thermodynamic fidelity evaluated. The model was trained on a diverse dataset encompassing solid, liquid, and interfacial configurations derived from density functional theory (DFT) calculations. Benchmarking against experiment and DFT data demonstrated significant improvements over the widely used classical Embedded Atom Method (EAM) potential, particularly in predicting defect e…

@arXiv_mathOC_bot@mastoxiv.page
2025-08-27 08:20:03

Dynamic System Optimum: A Projection-based Framework for Macroscopic Traffic Models
Mostafa Ameli, Sergio F. A. Batista, Jean-Patrick Lebacque, Monica Menendez
arxiv.org/abs/2508.18392

Dynamic System Optimum: A Projection-based Framework for Macroscopic Traffic Models
This paper proposes the theoretical grounds for emulating the Dynamic System Optimum with desired arrival times on regional networks, using aggregated traffic dynamics based on the Macroscopic Fundamental Diagram. We used a projection gradient-based solution method that avoids the need to compute approximations of marginal travel times. We demonstrate the application of our framework on 8-region networks and show that our approach yields improved solutions compared to classical approximation me…

@fanf@mendeddrum.org
2025-08-08 11:51:42

john venn’s memorial window in gonville & caius college dining hall

a stained glass window featuring a venn diagram with overlapping magenta, yellow, and blue circles, with the dates of john venn’s college appointments below the overlapping parts of the diagram are fairly dark and murky but this picture makes them look ok
@arXiv_astrophSR_bot@mastoxiv.page
2025-07-23 09:22:22

Red Supergiants -- The Other Side of the H-R Diagram
Roberta M. Humphreys
arxiv.org/abs/2507.15965 arxiv.org/pdf/2507…

Red Supergiants -- The Other Side of the H-R Diagram
Red supergiants are the largest stars known with some of the highest mass loss rates observed. They are the final stage in the evolution of the majority of massive stars. The unexpected discovery of high mass loss episodes in many red supergiants have posed questions about the role of mass loss on their final stages. The papers in this volume are timely reviews of our current understanding of this often surprising population of massive stars. This introductory paper is a brief summary of their …

@arXiv_condmatstatmech_bot@mastoxiv.page
2025-06-18 09:35:36

Dynamical Phase diagram of the Quantum Ising model with Cluster Interaction Under Noisy and Noiseless Driven field
Sasan Kheiri, R. Jafari, S. Mahdavifar, Ehsan Nedaaee Oskoee, Alireza Akbari
arxiv.org/abs/2506.14372

Dynamical Phase diagram of the Quantum Ising model with Cluster Interaction Under Noisy and Noiseless Driven field
In most lattice models, gap closing typically occurs at high-symmetry points in the Brillouin zone. In the transverse field Ising model with cluster interaction, besides the gap closing at high-symmetry points, the gap closing at the quantum phase transition between paramagnetic and cluster phases of the model can be moved by tuning the strength of the cluster interaction. We take advantage of this property to examine the nonequilibrium dynamics of the model in the framework of dynamical quantu…

@stsquad@mastodon.org.uk
2025-08-20 08:38:00

The latest #homeassistant has #sankey diagrams for energy flow. I obviously need more energy tracking #sensors for the house ;-)

An energy flow diagram showing grid and solar sources and where the energy flows to inside Home Assistant.
@arXiv_hepph_bot@mastoxiv.page
2025-08-21 08:37:30

The role of the pion mass on the QCD phase diagram in the $T-eB$ plane
Chowdhury Aminul Islam, Mahammad Sabir Ali, Rishi Sharma
arxiv.org/abs/2508.14189

The role of the pion mass on the QCD phase diagram in the $T-eB$ plane
We investigated the role of the pion mass on the QCD phase diagram in the $T-eB$ plane using an effective model treatment. Such treatments are able to capture the main features predicted by first-principles calculations. We also employed the model to estimate the pion mass beyond which the inverse magnetic catalysis (IMC) effect disappears. The value is found to be independent of the strength of the magnetic field.

@arXiv_quantph_bot@mastoxiv.page
2025-07-24 10:14:09

Fragmented quantum phases in anti-blockade regime of Rydberg atom array
Han-Chao Chen, Zheng-Yuan Zhang, Meng Zhou, Xin Liu, Li-Hua Zhang, Bang Liu, Lu-Xia Wang, Dong-Sheng Ding, Bao-Sen Shi
arxiv.org/abs/2507.17488

Fragmented quantum phases in anti-blockade regime of Rydberg atom array
In this Letter, we report a parameter-dependent Hilbert space fragmentation in a one-dimensional Rydberg atom array under anti-blockade conditions. We identify distinct non-equilibrium dynamical phases and show that their quasi-periodic behavior arises from the interplay of multi-path interference and multi-photon cascaded excitations, reflecting fundamental differences in state connectivity and effective dimensionality. By constructing a complete phase diagram, we reveal the transition from th…

@arXiv_mathAT_bot@mastoxiv.page
2025-06-24 08:33:20

$C_{pq}$-Injective Diagrams and a Combination Theorem for Minimal Models
Soumyadip Thandar
arxiv.org/abs/2506.17998 a…

$C_{pq}$-Injective Diagrams and a Combination Theorem for Minimal Models
We study diagrams of commutative differential graded algebras (DGAs) over the orbit category $\sO_G$ in the context of equivariant rational homotopy theory. For $G = C_{pq}$ with $p, q$ distinct primes, we give necessary conditions for injectivity. We prove a combination-type result: the equivariant wedge of injective diagrams over $\mathcal{O}_{C_p}$ and $\mathcal{O}_{C_q}$ with retract structure maps yields an injective diagram over $\mathcal{O}_{C_{pq}}$ with a level-wise minimal model. As a…

@inthehands@hachyderm.io
2025-06-07 00:44:26

The text I have conveys the •meaning• of the diagram, and it’s better than nothing:
❝Three different trees showing possible interpretations of 1000 - 100 - 10 - 1. In the first tree, subtraction happens from left to right. In the second tree, it happens from right to left. In the third tree, we first compute 1000 minus 100, then 10 minus 1, then subtract those two results.❞
That’s probably the best I can do in the current format. But if there were a way to make convey more of the spatial sense, I’d do it!

@arXiv_condmatstrel_bot@mastoxiv.page
2025-06-30 09:19:30

Site-polarized Mott phases competing with a correlated metal in twisted WSe$_2$
Siheon Ryee, Lennart Klebl, Gautam Rai, Ammon Fischer, Valentin Cr\'epel, Lede Xian, Angel Rubio, Dante M. Kennes, Roser Valent\'i, Andrew J. Millis, Antoine Georges, Tim O. Wehling
arxiv.org/abs/2506.22325

Site-polarized Mott phases competing with a correlated metal in twisted WSe$_2$
Twisted WSe$_2$ hosts superconductivity, metal-insulator phase transitions, and field-controllable Fermi-liquid to non-Fermi-liquid transport properties. In this work, we use dynamical mean-field theory to provide a coherent understanding of the electronic correlations shaping the twisted WSe$_2$ phase diagram. We find a correlated metal competing with three distinct site-polarized correlated insulators; the competition is controlled by interlayer potential difference and interaction strength. …

@arXiv_astrophSR_bot@mastoxiv.page
2025-07-28 08:55:21

Near-infrared characterization of evolved massive stars in M31 and M33
Michaela Kraus, Maria Laura Arias, Michalis Kourniotis, Andrea Torres, Lydia S. Cidale, Marcelo Borges Fernandes
arxiv.org/abs/2507.19249

Near-infrared characterization of evolved massive stars in M31 and M33
The upper region of the Hertzsprung-Russell diagram is populated by massive stars in a diversity of evolutionary stages, and the classification of these stars is often based on observed characteristics exclusively in the optical spectral range. The near-infrared regime provides useful complementary information that can help resolving ambiguities in stellar classification and add valuable information about circumstellar envelopes or late-type companions. We present new, near-infrared medium-reso…

@arXiv_condmatmeshall_bot@mastoxiv.page
2025-08-26 10:09:56

Revisiting the adiabatic limit in ballistic multiterminal Josephson junctions
R\'egis M\'elin, Asmaul Smitha Rashid, Romain Danneau, Morteza Kayyalha
arxiv.org/abs/2508.17367

Revisiting the adiabatic limit in ballistic multiterminal Josephson junctions
Motivated by recent experiments on multiterminal Josephson junctions (MJJs) that probe different ranges of the size and bias voltage parameters, we introduce a two-dimensional (2D) cross-over diagram to map the relationship between device dimension (x-axis) and bias voltage (y-axis). This cross-over diagram conveniently separates the different physical regimes of the devices. This framework is used to explore the regime of increasing bias voltage in large-scale devices near the x-axis, where th…

@arXiv_mathGT_bot@mastoxiv.page
2025-08-12 08:40:02

Rectangular diagrams of foliations
Mikhail Chernavskikh, Ivan Dynnikov
arxiv.org/abs/2508.07732 arxiv.org/pdf/2508.07732

Rectangular diagrams of foliations
A concept of a rectangular diagram of a foliation in the three-sphere is introduced. It is shown that any co-orientable finite depth foliation in the complement of a link admits a presentation by a rectangular diagram compatible with the given rectangular diagram of the link.

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-06-23 11:21:20

Machine Learning Potentials for Alloys: A Detailed Workflow to Predict Phase Diagrams and Benchmark Accuracy
Siya Zhu, Doguhan Sariturk, Raymundo Arroyave
arxiv.org/abs/2506.16771

Machine Learning Potentials for Alloys: A Detailed Workflow to Predict Phase Diagrams and Benchmark Accuracy
High-entropy alloys (HEAs) have attracted increasing attention due to their unique structural and functional properties. In the study of HEAs, thermodynamic properties and phase stability play a crucial role, making phase diagram calculations significantly important. However, phase diagram calculations with conventional CALPHAD assessments based on experimental or ab-initio data can be expensive. With the emergence of machine-learning interatomic potentials (MLIPs), we have developed a program …

@arXiv_condmatquantgas_bot@mastoxiv.page
2025-08-11 09:06:50

Magnetization-induced reordering of ground states phase diagram in a two-component Bose-Hubbard model
Oskar Stachowiak, Hubert Dunikowski, Emilia Witkowska
arxiv.org/abs/2508.06442

Magnetization-induced reordering of ground states phase diagram in a two-component Bose-Hubbard model
We investigate the influence of non-zero magnetization on the ground-state phase diagram of the two-component Bose-Hubbard model. Employing a mean-field theoretical framework, both analytically and numerically, we demonstrate that positions and sizes of specific phases on the diagram are magnetization dependent. In particular, non-zero magnetization introduces different Mott insulator phase boundaries for each of the two components. This effect leads to the emergence of a hybrid phase character…

@arXiv_hepph_bot@mastoxiv.page
2025-08-28 09:10:21

Renormalization group analysis of color superconductivity revisited
Yuki Fujimoto
arxiv.org/abs/2508.19728 arxiv.org/pdf/2508.19728

Renormalization group analysis of color superconductivity revisited
Color superconductivity in cold, dense quark matter is a key feature of the QCD phase diagram, whose present theoretical understanding relies predominantly on weak-coupling calculations. In this work, we revisit the evaluation of the color-superconducting gap using a renormalization group (RG) framework formulated in effective theory near the Fermi surface. By incorporating quark self-energy corrections into the RG equation, we reproduce the known weak-coupling results from the gap equation at …

@arXiv_condmatstatmech_bot@mastoxiv.page
2025-06-25 09:06:20

Long-range Order in a Short-range Quasi-2D XY Model
Minghui Hu, Chao Zhang, Dajun Zhang, Yanan Sun, Youjin Deng, Jian-Ping Lv
arxiv.org/abs/2506.19637

Long-range Order in a Short-range Quasi-2D XY Model
The phase of spins in the quasi-two-dimensional (Q2D) XY model has emerged as a topic of significant interest across multiple physics subfields. Here, we propose a short-range (SR) Q2D XY model defined on a plane perpendicularly intersected by a group of parallel planes, with each plane consisting of nearest-neighbor-coupled XY spins. We perform large-scale Monte Carlo simulations to establish the full phase diagram of the Q2D XY model, aided by finite-size scaling. A long-range (LR) ordered ph…

@arXiv_astrophSR_bot@mastoxiv.page
2025-08-28 09:24:21

Attempting an accurate age estimate of the open cluster NGC 6633 using CoRoT and Gaia
K. Brogaard, A. Miglio, T. Arentoft, J. S. Thomsen, G. Casali, L. Martinelli, E. Willett, M. Tailo
arxiv.org/abs/2508.19767

Attempting an accurate age estimate of the open cluster NGC 6633 using CoRoT and Gaia
Asteroseismology of solar-like oscillations in giant stars allow the derivation of their masses and radii. For members of open clusters, this provides an age of the cluster that should be identical to the one derived from the colour-magnitude diagram, but independent of the uncertainties that are present for that type of analysis. We aim to identify and measure the properties of giant members of the open cluster NGC6633, and combine these with asteroseismic measurements to derive a precise and …

@arXiv_condmatstrel_bot@mastoxiv.page
2025-07-30 08:25:22

Magnetically ordered yet topologically robust phases emerging in concurrent Kitaev spin liquids
Muhammad Akram, Aayush Vijayvargia, Hae-Young Kee, Onur Erten
arxiv.org/abs/2507.21226

Magnetically ordered yet topologically robust phases emerging in concurrent Kitaev spin liquids
Spin-orbital generalizations of Kitaev model, such as Yao-Lee model, have attracted recent attention due to their enhanced stability of spin liquid phases against perturbations. Motivated by microscopic calculations for the realization of Yao-Lee model showing additional interactions, we study the phase diagram of the Yao-Lee model with added Kitaev and Heisenberg terms. While the plaquette operator is conserved even in the presence of added perturbations, the model becomes no longer exactly so…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-07-30 08:59:31

Static and Dynamical Characterization of Ground State Phases Induced by Frustration and Magnetic Field in the Spin-1 Orthogonal Dimer Chain
Ernest Ong, Dhiman Bhowmick, Sharoz Schezwen, Pinaki Sengupta
arxiv.org/abs/2507.21771

Static and Dynamical Characterization of Ground State Phases Induced by Frustration and Magnetic Field in the Spin-1 Orthogonal Dimer Chain
The spin-$1$ orthogonal dimer chain is investigated using the Density Matrix Renormalization Group (DMRG) algorithm. A transformation to a basis that uses the local eigenstates of the orthogonal dimers, while retaining the local spin states for the parallel spins, allows for more effective implementation of the symmetries, as well as mitigating the entanglement bias of DMRG. A rich ground state phase diagram is obtained in the parameter space spanned by the ratio of inter- to intra-dimer intera…

@arXiv_condmatmeshall_bot@mastoxiv.page
2025-07-28 09:02:51

Real-space second Chern number using the kernel polynomial method
Rui Chen, Bin Zhou
arxiv.org/abs/2507.18919 arxiv.org/pdf/2507.18919

Real-space second Chern number using the kernel polynomial method
We evaluate the real-space second Chern number of four-dimensional Chern insulators using the kernel polynomial method. Our calculations are performed on a four-dimensional system with $30^4$ sites, and the numerical results agree well with theoretical expectations. Moreover, we show that the method is capable of capturing the disorder effects. This is evidenced by the phase diagram obtained for disordered systems, which agrees well with predictions from the self-consistent Born approximation. …

@arXiv_astrophSR_bot@mastoxiv.page
2025-08-27 09:21:03

Characterizing bright $\delta$ Scuti pulsators using TESS lightcurves
Prasad Mani, Timothy R. Bedding, Mara Bernizzoni, Simon J. Murphy, Daniel Hey
arxiv.org/abs/2508.18589

Characterizing bright $δ$ Scuti pulsators using TESS lightcurves
We present a study of bright, young $δ$ Scuti stars near the zero-age main sequence using TESS light curves and Gaia DR3 data. From a sample of 2041 stars with G<7 and $G_{BP}-G_{RP}$ colour in the range 0-0.6, we identified 444 $δ$ Scuti pulsators. We measured a pulsator fraction of ~70% in the middle of the instability strip, tapering off towards the edges. A period - luminosity diagram reveals a concentration along the fundamental mode and overtone ridges. We addressed sample completeness …

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-07-17 09:29:50

Magnetic and ferroelectric phase diagram of twisted CrI$_3$ layers
Haoshen Ye, Shuai Dong
arxiv.org/abs/2507.12324 ar…

Magnetic and ferroelectric phase diagram of twisted CrI$_3$ layers
Twisting layers provide a rich ore for exotic physics in low dimensions. Despite the abundant discoveries of twistronics from the aspect of electronic structures, ferroic moiré textures are more plain and thus less concerned. Rigid lattice models are straightforward which can give a rough but intuitional description in most cases. However, taking CrI$_3$ as a model system, here we will demonstrate that the interlayer stacking potential can spontaneously lead to structural relaxation, which pla…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-06-19 09:28:27

Highly anisotropic magnetic phase diagram of the ferromagnetic rare-earth diboride HoB$_{2}$
Takafumi D. Yamamoto, Hiroyuki Takeya, Kensei Terashima, Akiko T. Saito, Yoshihiko Takano
arxiv.org/abs/2506.15302

Highly anisotropic magnetic phase diagram of the ferromagnetic rare-earth diboride HoB$_{2}$
Rare-earth (RE) compounds have been of enormous interest in condensed matter physics as a platform for the exploration of interesting physical phenomena. Here, we report the successful single crystal growth of HoB$_{2}$, which exhibits a paramagnetic (PM)-ferromagnetic (FM) phase transition at 15 K and another phase transition at 11 K, and the discovery of a highly anisotropic magnetic phase diagram of this FM diboride. Magnetization measurements suggest that the ferromagnetically ordered momen…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-08-28 08:34:11

Thermodynamics in a split Hilbert space: Quantum impurity at the edge of a one-dimensional superconductor
Pradip Kattel, Abay Zhakenov, Natan Andrei
arxiv.org/abs/2508.19330

Thermodynamics in a split Hilbert space: Quantum impurity at the edge of a one-dimensional superconductor
We present a thermodynamic description of a single magnetic impurity at the edge of a superconducting wire. The impurity exhibits four phases $\unicode{x2014}$ Kondo, Yu-Shiba-Rusinov (YSR) I and II, and local moment $\unicode{x2014}$ a phase diagram richer than in the gapless case, contrary to the expectation that the effects of impurities in gapped hosts are less consequential. We derive the impurity contribution to free energy $F_{\rm imp}(T)$ and entropy in each phase: in Kondo phase, the e…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-07-23 08:51:52

"Odd" Toric Code in a tilted field: Higgs-confinement multicriticality, spontaneous self-duality symmetry breaking, and valence bond solids
Umberto Borla, Ayush De, Snir Gazit
arxiv.org/abs/2507.16523

"Odd" Toric Code in a tilted field: Higgs-confinement multicriticality, spontaneous self-duality symmetry breaking, and valence bond solids
We investigate the quantum phase diagram of an ``odd'' variant of the two-dimensional Ising Fradkin--Shenker model, characterized by a uniform background of static $e$ and $m$ charges. Using large-scale tensor network and exact diagonalization methods, we determine the topology of the phase diagram, identifying an ``odd'' deconfined phase, confinement- and Higgs-induced valence bond solids (VBS), and a trivial paramagnet. Most notably, we uncover an exotic multicritical point along the self-dua…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-07-28 09:37:21

Stabilization of the collinear plateau phase by thermal fluctuations in the disordered triangular lattice antiferromagnet Rb$_{(1-x)}$K$_{x}$Fe(MoO$_4$)$_2$
V. N. Glazkov, I. A. Krastilevskiy
arxiv.org/abs/2507.19190

Stabilization of the collinear plateau phase by thermal fluctuations in the disordered triangular lattice antiferromagnet Rb$_{(1-x)}$K$_{x}$Fe(MoO$_4$)$_2$
The triangular lattice antiferromagnet RbFe(MoO$_4$)$_2$ orders antiferromagnetically in a planar 120$^\circ$-structure below $T_\textrm{N}\approx 4$ K. A striking feature of RbFe(MoO$_4$)$_2$ magnetic phase diagram is the presence of collinear ``1/3-plateau'' magnetic phase, which is stabilized by thermal and quantum fluctuations at magnetization $M\approx \frac{1}{3} M_\textrm{sat}$. Static disorder caused by impurities is predicted to act against the effect of fluctuations and to suppress co…

@arXiv_condmatstrel_bot@mastoxiv.page
2025-06-27 08:24:19

Tuning between a fractional topological insulator and competing phases at $\nu_\mathrm{T}=2/3$
Roger Brunner, Titus Neupert, Glenn Wagner
arxiv.org/abs/2506.20720

Tuning between a fractional topological insulator and competing phases at $ν_\mathrm{T}=2/3$
We study a spinful, time-reversal symmetric lowest Landau level model for a flatband quantum spin Hall system at total filling fraction $ν_\mathrm{T}=2/3$. Such models are relevant, e.g. for spin-valley locked moiré transition metal dichalcogenides. The opposite Chern number of the two spins hinders the formation of a quantum Hall ferromagnet, instead favouring other phases. We study the phase diagram in dependence on different short-range Haldane pseudopotentials $V_m$ and uncover several ph…