Spectral phase transitions in Gaussian multi-index models
Florent Krzakala, Pierre Mergny, Vanessa Piccolo
https://arxiv.org/abs/2608.12183 https://arxiv.org/pdf/2608.12183 https://arxiv.org/html/2608.12183
arXiv:2608.12183v1 Announce Type: new
Abstract: Recovering a low-dimensional latent subspace from nonlinear observations of Gaussian covariates in high dimensions is a fundamental problem in feature learning. Here, we consider Gaussian multi-index models in which the covariates $\boldsymbol{x}_i \stackrel{\mathrm{i.i.d.}}{\sim} \mathcal{N}(0,\boldsymbol{I}_d)$ and the responses $\boldsymbol{y}_i$ depend on $\boldsymbol{x}_i$ only through its projection onto an unknown $r$-dimensional subspace. Earlier work based on approximate message passing (AMP) identified a sharp threshold for weak recovery [Troiani et al., 2025], raising the question of whether it can be attained, without side information, by a spectral method. We answer this affirmatively and develop a general random matrix theory for matrix-valued spectral estimators of the form \[\boldsymbol{D}_n=\frac{1}{n}\sum_{i=1}^n\boldsymbol{T}(\boldsymbol{y}_i)\otimes\boldsymbol{x}_i\boldsymbol{x}_i^\top,\] where $\boldsymbol{T}$ is an arbitrary bounded symmetric matrix-valued preprocessing map of fixed dimension. As $n,d \to \infty$ with $n/d\to\alpha$, we prove that the empirical spectral measure of $\boldsymbol{D}_n$ converges almost surely to a deterministic compactly supported distribution characterized by a matrix-valued self-consistent equation. We then establish a spectral phase transition for the largest eigenvalue: below threshold it sticks to the bulk edge, while above threshold an outlier emerges. We characterize the outlier location through a finite-dimensional deterministic equation and show that the associated spectral estimator achieves weak recovery of the latent subspace. Finally, we prove that the AMP-derived preprocessing of [Defilippis et al., 2025] is optimal among all bounded matrix-valued preprocessing maps of any fixed dimension. Its transition coincides with the AMP weak-recovery threshold, proving the general spectral conjecture of [Defilippis et al., 2025].
toXiv_bot_toot
ResonaVis: Visualizing Interactive Music Data to Support Reflective Music Composition for Therapeutic Contexts
Abhishek Karwankar, Elise Ruggiero, Daniel Stevens, Matthew Louis Mauriello
https://arxiv.org/abs/2608.10338 https://arxiv.org/pdf/2608.10338 https://arxiv.org/html/2608.10338
arXiv:2608.10338v1 Announce Type: new
Abstract: Designing music for therapeutic contexts requires navigating complex relationships between musical structure and listeners' sensory responses, yet composers often lack structured representations of these interactions, relying instead on intuition. We present ResonaVis, an interactive visualization system that helps composers analyze interaction and audio data from prior sessions with children with Autism Spectrum Disorder (ASD), informing future compositions. ResonaVis integrates audio features and interaction logs to capture how children engage with layered musical compositions, representing this engagement through coordinated visualizations of temporal transitions, layer co-occurrence, rhythmic activity, and spectral characteristics. Rather than prescribing strategies or supporting therapy sessions directly, the system surfaces patterns in past session data to support data-informed reflection during composition. We evaluated ResonaVis through a mixed-methods study with eight music students and a follow-up case study with two experienced composers. Results demonstrate good usability (SUS = 72.23), exceeding benchmarks for early prototypes, and show that participants could identify interaction patterns, reason about layer relationships, and make informed compositional decisions with high perceived performance and low frustration. Confidence in interpreting interaction and acoustic data for ASD-focused composition increased significantly across multiple dimensions (p < 0.05), with qualitative findings suggesting a shift toward more adaptive, data-informed composition. This work contributes a visualization design space for therapeutic music interaction data, an integrated system for compositional reflection, and empirical evidence that visualization tools support analytical reasoning and confidence in data-informed creative practice. (Abstract shortened for arXiv.)
toXiv_bot_toot
Shopware 6 Hidden Gems #6: Two state machine tricks — diagrams for free and forcing “impossible” transitions
Order states, delivery states, payment states — Shopware models all of them as state machines with defined transitions. Which is great, until a) a new colleague asks "so which states can an order actually be in?" and you start drawing boxes on a whiteboard, or b) an order gets stuck in a state it can't legally leave and you start writing UPDATE statements…
I finally found an excellent use for the View Transition API for my #PWA #IndieDev
Replaced article(s) found for hep-th. https://arxiv.org/list/hep-th/new
[3/3]:
- Equivalence of Stability Criteria for Multi-Fluid Stars
Tian-Shun Chen, Xiao-Ding Zhou, Hao Feng, Kilar Zhang
https://arxiv.org/abs/2512.01640 https://mastoxiv.page/@arXiv_astrophHE_bot/115649670029097728
- ACT-Planck data and phase transitions from a viable no-scale Standard Model completion
Filippo Cutrona, Francesco Rescigno, Alberto Salvio
https://arxiv.org/abs/2603.24664 https://mastoxiv.page/@arXiv_hepph_bot/116300067793362249
- Rotation of the polarization plane in axion fields: application to neutron star polar cap regions
Iver H. Brevik, Moshe M. Chaichian, Tiberiu Harko, Yuri N. Obukhov
https://arxiv.org/abs/2603.28826 https://mastoxiv.page/@arXiv_hepph_bot/116328472387188451
- The scalar--Maxwell--$\Lambda(x)$ system: Wormhole spacetimes without nonlinear electrodynamics i...
G. Alencar, T. M. Crispim
https://arxiv.org/abs/2603.30003 https://mastoxiv.page/@arXiv_grqc_bot/116328672276108547
- Exact general relativistic solutions for a cylindrically symmetric stiff fluid matter source
Tiberiu Harko, Francisco S. N. Lobo, Man Kwong Mak
https://arxiv.org/abs/2604.02449 https://mastoxiv.page/@arXiv_grqc_bot/116356753476950318
- Gauged Q-balls in flat potentials
Julian Heeck, Yu Zhi
https://arxiv.org/abs/2604.07454 https://mastoxiv.page/@arXiv_hepph_bot/116379500037672008
- Electromagnetic, gravitational wave, and static gravitational transmission through throat spaceti...
Jeff Riley
https://arxiv.org/abs/2604.14238 https://mastoxiv.page/@arXiv_grqc_bot/116418938291963451
- Rotating black holes with primary hair in five-dimensional generalized Proca theory
Mokhtar Hassaine, Ulises Hernandez-Vera
https://arxiv.org/abs/2605.17870 https://mastoxiv.page/@arXiv_grqc_bot/116600369149996731
- Exact Entanglement Dynamics Beyond Nearest-Neighbor Dual-Unitary Floquet Systems
Tanay Pathak
https://arxiv.org/abs/2606.11311 https://mastoxiv.page/@arXiv_quantph_bot/116730376162758952
- Weyl gauge symmetry at LIGO-Virgo-KAGRA
D. M. Ghilencea, V. -M. Mandric
https://arxiv.org/abs/2607.13146 https://mastoxiv.page/@arXiv_grqc_bot/116928555436432190
- Two-Horizon Sector Thermodynamics as a Diagnostic for the Bi-Hair Organization of NUT Charge
Di Wu, Robert B. Mann, Shuang-Qing Wu
https://arxiv.org/abs/2607.23644 https://mastoxiv.page/@arXiv_grqc_bot/116996732836199490
toXiv_bot_toot
RE: https://hachyderm.io/@molly0xfff/117219107071552031
Amazing, I really thought these guys were not a fan of identity transitions
Replaced article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- Shielded inner-shell transitions in atomic samarium for tests of fundamental physics
Aramyan, Budker, Dzuba, Flambaum, Porsev, Safronova, Tretiak, Zhang
Crosslisted article(s) found for math-ph. https://arxiv.org/list/math-ph/new
[1/2]:
- Phase transitions, shadows, and microstructure of Reissner-Nordstr\"om-Anti-de-Sitter black holes...
Jose M. Ladino, Carlos E. Romero-Figueroa, Hernando Quevedo
A Time-Resolved Framework for Quantifying Neuronal Network State Transitions
Ilya Auslender, Yasaman Heydari, Asiye Malko\c{c}, Clara Zaccaria, Yuri Bozzi, Lorenzo Pavesi
https://arxiv.org/abs/2610.08392
New 10x8" silver gelatin print. This one took a lot of refining, back and forth and test strips to achieve the right balance between brightness, contrast (esp. in the brighter parts of the clouds) and smooth mid-tone transitions. So even though this is a contact print from a digital negative, this was the first time in ages (i.e. decades) that I used some physical dodging to soften the horizon and emphasize the haze in the distance a tiny bit more...
Crosslisted article(s) found for astro-ph.CO. https://arxiv.org/list/astro-ph.CO/new
[1/1]:
- Consistent Thermal Resummation and Phase Transitions with 2PI Methods
Amitayus Banik, Kimmo Kainulainen
https://arxiv.org/abs/2608.04102 https://mastoxiv.page/@arXiv_hepph_bot/117047502693663591
- Amnesia in the Axion Misalignment Landscape
Kierthika Chathirathas, Cem Er\"oncel, Mathieu Kaltschmidt, Javier Redondo, Kenichi Saikawa
https://arxiv.org/abs/2608.04139 https://mastoxiv.page/@arXiv_hepph_bot/117047523928429238
- Corrections to Hawking radiation from asteroid-mass primordial black holes: analytic and numerica...
Gabriel Vasquez, Bowen Chen, Cara Nel, Emily Koivu, Makana Silva, Christopher M. Hirata
https://arxiv.org/abs/2608.04346 https://mastoxiv.page/@arXiv_grqc_bot/117047445284689579
- Relativistic Signatures of Dark Matter Equations of State in Static Spherically Symmetric Spacetimes
Akash Yadav, Sudhava Yadav, K. K. Venkataratnam
https://arxiv.org/abs/2608.04470 https://mastoxiv.page/@arXiv_grqc_bot/117047473794282581
- Inflow-driven galaxy evolution - I. Revealing the physics of the fundamental metallicity relation
Kai Wang, et al.
https://arxiv.org/abs/2608.04784 https://mastoxiv.page/@arXiv_astrophGA_bot/117047534350606403
- Evolution of matter perturbations in the context of cosmic slowing down
D. Koh Cuende, G. Panotopoulos
https://arxiv.org/abs/2608.04922 https://mastoxiv.page/@arXiv_grqc_bot/117047514099918452
- Post-Inflationary Constraints on Nonminimally Coupled Quintessential Inflation
Min Gi Park, Seong Chan Park, Tomo Takahashi, Jos\'e Jaime Terente D\'iaz
https://arxiv.org/abs/2608.05079 https://mastoxiv.page/@arXiv_grqc_bot/117047542803232910
- CCAT: Design and Characterization of the 350 GHz Instrument Module
Ben Keller, et al.
https://arxiv.org/abs/2608.05121 https://mastoxiv.page/@arXiv_astrophIM_bot/117047574262723419
toXiv_bot_toot
#Halite centered on this shelf of a mineral display. A cluster of light pink halite crystals accompanies two large crystals, one of which is clear while the other transitions from clear to black. #MinCup26 contender #sphalerite
Crosslisted article(s) found for hep-th. https://arxiv.org/list/hep-th/new
[1/2]:
- Living on the Edge of Effective Field Theory: Near-Extremal Black Holes in Quadratic Gravity
Kelvin Ka-Ho Lam, Gary T. Horowitz, Nicol\'as Yunes
https://arxiv.org/abs/2608.05268 https://mastoxiv.page/@arXiv_grqc_bot/117053119278147418
- Relative entropy of entanglement of Haar random states
Takato Mori, Beni Yoshida
https://arxiv.org/abs/2608.05274 https://mastoxiv.page/@arXiv_quantph_bot/117053252355717367
- Theory of Measurement-Altered Criticality
Kabir Khanna, Sara Murciano, Romain Vasseur
https://arxiv.org/abs/2608.05289 https://mastoxiv.page/@arXiv_condmatstatmech_bot/117053093687616139
- Self-dual $S_3$ gauge theory in 2 1d: lattice model and topological phase transitions
Da-Chuan Lu, Chong Wang, Ashvin Vishwanath
https://arxiv.org/abs/2608.05294 https://mastoxiv.page/@arXiv_condmatstrel_bot/117053135203168433
- 3-form dark energy and cosmic birefringence
Kohei Kamada, Tucker Manton
https://arxiv.org/abs/2608.05296 https://mastoxiv.page/@arXiv_astrophCO_bot/117053109615577309
- GOOFy-compatible 3HDMs and beyond
I. de Medeiros Varzielas, A. Kun\v{c}inas
https://arxiv.org/abs/2608.05304 https://mastoxiv.page/@arXiv_hepph_bot/117053194550154760
- Beyond Borel Windows: A Systematic Optimization Framework for QCD Sum Rules
Raphael M. Albuquerque
https://arxiv.org/abs/2608.05322 https://mastoxiv.page/@arXiv_hepph_bot/117053194943710217
- Quantum information loss
James Fullwood, Wu-zhong Guo, Boyu Yang
https://arxiv.org/abs/2608.05535 https://mastoxiv.page/@arXiv_quantph_bot/117053277916138502
- Coherent and Stochastic Axion Dark Matter from Thermal Relaxation
Gurmani, Cilli, Channuie, Abdujabbarov, Atamurotov, G\"udekli
https://arxiv.org/abs/2608.05538 https://mastoxiv.page/@arXiv_hepph_bot/117053223846614186
- Asymmetric Quantum Oppenheimer-Snyder Collapse
Micha{\l} Bobula, Tomasz Paw{\l}owski
https://arxiv.org/abs/2608.05818 https://mastoxiv.page/@arXiv_grqc_bot/117053193567517392
- Triviality in a Non-Perturbative Second-Order Mean-Field Theory for $\phi^4_4$
Majdouline Borji
https://arxiv.org/abs/2608.05998 https://mastoxiv.page/@arXiv_mathph_bot/117053148149785707
- Measurement-induced entanglement Hamiltonian
Viktor Eisler, Erik Tonni
https://arxiv.org/abs/2608.06006 https://mastoxiv.page/@arXiv_condmatstatmech_bot/117053217162278663
- An Effective String Theory Toolbox for Quantum Hall Interfaces I: Worldsheet Kinematics and Const...
Ken K. W. Ma
https://arxiv.org/abs/2608.06097 https://mastoxiv.page/@arXiv_condmatmeshall_bot/117053183146860935
toXiv_bot_toot
HenTwin: A Multimodal Digital Twin Framework for Longitudinal Biological State Monitoring in Laying Hens
Yashan Dhaliwal, Shreya Rao, Suresh Neethirajan
https://arxiv.org/abs/2607.28652 https://arxiv.org/pdf/2607.28652 https://arxiv.org/html/2607.28652
arXiv:2607.28652v1 Announce Type: new
Abstract: Early-life monitoring in laying hens remains constrained by fragmented single-modality sensing and the absence of formal system-level state representations. HenTwin, a multimodal digital twin framework implemented as a five-layer IoT architecture, formalizes flock-level multimodal biological state dynamics from hatch through 25 weeks of age. A four-dimensional biological state vector integrating body surface temperature, acoustic energy entropy, band energy ratio, and optical-flow-based motion is defined, with the temperature-humidity index treated as an exogenous environmental input to preserve intervention capability. A discrete-time state transition model is estimated from 25 weeks of longitudinal multimodal data collected from 150 Lohmann LSL-Lite hens across five controlled rooms at the Atlantic Poultry Research Centre, Dalhousie University. The estimated transition matrix exhibits modality-specific persistence while remaining asymptotically stable. Perturbation analysis demonstrates that a sustained 2.0 THI increase produces a stable long-run acoustic entropy elevation of 0.54 nats, approximately one-quarter of the entire 1.87-nat developmental decline observed across the study period. Pettitt change-point detection identifies coordinated multimodal developmental state transitions at Weeks 12-14. Cross-room validation suggests that structural transition parameters are partially transferable across rooms, whereas environmental input sensitivity requires room-specific calibration, supporting a two-tier IoT deployment architecture. Leave-one-out cross-validation demonstrates consistent out-of-sample model performance. HenTwin takes a first step toward formal, state-aware digital twin inference in precision livestock farming.
toXiv_bot_toot
Replaced article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- Four- and six-photon stimulated Raman transitions for coherent qubit and qudit operations
Gregory, Ritchie, Quinn, Brudney, Wineland, Allcock, O'Reilly
Quantifying AI impact in energy transitions: The Energy Justice Impact Assessment (EJIA) framework
Emily Bringmann, Florian Kutzner, Bianca Weber, Celina Kacperski
https://arxiv.org/abs/2609.30010
Crosslisted article(s) found for nlin.SI. https://arxiv.org/list/nlin.SI/new
[1/1]:
- Triple Hodge integrals and constant Poisson brackets for rank-one Dubrovin-Zhang hierarchies
Xavier Blot, Guido Carlet, Dimitrios Makris, Sergey Shadrin
https://arxiv.org/abs/2608.00462 https://mastoxiv.page/@arXiv_mathAG_bot/117036135849841735
- Mechanism of State Transitions for the Vector Kuznetsov-Ma Breathers
Muchen Dong, Lei Wang
https://arxiv.org/abs/2608.00570 https://mastoxiv.page/@arXiv_nlinPS_bot/117036108127385445
- Caustics and Superenergy in the Quantum Bouncer
Marko. M. \'Cosi\'c, Andrew N. Jordan
https://arxiv.org/abs/2608.02427 https://mastoxiv.page/@arXiv_quantph_bot/117036508632063568
toXiv_bot_toot
GPT 5.6 Sol came up with a smart solution to preserve native scroll behavior while having control over custom staggered scroll transitions. It makes me want to write a blog article for that, but it’s not technically “my discovery” 🤔
Integrability-breaking phase transitions in stadium-like billiards
Anne K\'etri P. da Fonseca, Edson D. Leonel
https://arxiv.org/abs/2607.16482 https://arxiv.org/pdf/2607.16482 https://arxiv.org/html/2607.16482
arXiv:2607.16482v1 Announce Type: new
Abstract: We investigate integrability-breaking transitions in two classes of stadium-like billiards with parabolic boundaries. While focusing boundaries generate a mixed phase space in which regular islands coexist with a chaotic sea, dispersing boundaries produce a fully chaotic phase space for any finite boundary deformation. By analyzing the scaling behavior of the roughness $\omega$, we identify two qualitatively distinct transitions: a continuous transition for the focusing geometry and a first-order transition for the dispersing one. We determine the corresponding critical exponents and establish the associated scaling laws. For the continuous transition, we further provide a complete characterization within the framework of critical phenomena by identifying the broken symmetry, the order parameter and its diverging susceptibility, the elementary excitations responsible for chaotic diffusion, and the topological defects governing transport. These results establish a statistical-mechanics framework for describing integrability-breaking transitions in Hamiltonian billiards and suggest that the concepts of critical phenomena naturally extend to deterministic nonlinear dynamical systems.
toXiv_bot_toot
How Dilatation Invariance Suppresses Loop Corrections to Curvature Perturbations on CMB Scales
Danilo Artigas, Shi Pi, Takahiro Tanaka, Yuko Urakawa
https://arxiv.org/abs/2608.03725 https://arxiv.org/pdf/2608.03725 https://arxiv.org/html/2608.03725
arXiv:2608.03725v1 Announce Type: new
Abstract: Departures from standard slow-roll (SR) inflation have attracted increasing interest in recent years. In particular, scenarios that strongly enhance the power spectrum of the curvature perturbation are often proposed as a mechanism for producing primordial black holes, which could account for part or the totality of dark matter. An ongoing debate in these models is whether non-linear interactions of cosmological perturbations on small scales, namely loop corrections, can become sufficiently large to backreact on CMB scales. In this work, we adopt a non-linear framework, dropping spatial-gradient terms, to study loop corrections at super-Hubble scales. Our focus is to clarify the role of spatial-diffeomorphism invariance, especially dilatation invariance, which is the symmetry under overall rescaling of spatial coordinates, in demonstrating the suppression of loop corrections to the CMB power spectrum. This analysis is valid for any inflaton potential, both with smooth and sharp transitions, and at any loop order, as long as the CMB scales cross the horizon during an SR phase. We compare this result with the different explanations proposed in the literature using various gauge choices, and show our analysis is consistent both in the comoving and in the spatially-flat gauges. In particular, we show that in the spatially-flat gauge, the cubic interaction contains a term that diverges in the sharp transition limit. However, this contribution is exactly cancelled by the quartic interaction.
toXiv_bot_toot
Pushed up some new examples on how to use intrastate for declaring/managing state transitions
https://github.com/cwensel/intrastate/blob/main/docs/examples.md
Of specific interest is using it to read and update "state" in a markdown document. For e…
Regardless of specifics, any kind of claim of non-existence of something showing up, be it climate change, self-identity or myriads of bug reports, is a matter of coping with aspects of a world full of transitions and different perspectives. ✨
Denial is just the easy route. Looking beyond your perception might be hard, yet can be very rewarding.
There are many colors to enjoy! 🏳️🌈
TL;DR: Deal with it, things change over time.
So, hug your friends if that's your thing - have a lovely day! 🧡
Cancellation of $D_2$ line transitions of alkali-metal atoms by magnetic-field values
Artur Aleksanyan, Susanna Petrosyan, Emil Gazazyan
https://arxiv.org/abs/2608.29700 https:/…
Raman Transitions in Collinear Laser Spectroscopy for High-Precision Frequency Measurements
Julien Spahn, Hendrik Bodnar, Kristian K\"onig, Wilfried N\"ortersh\"auser, Robbe Van Duyse
https://arxiv.org/abs/2609.35284
What might #SHAPE mean in practice?
S — Stage: split processing into explicit, understandable steps
H — Handover: make transitions between tools, formats, and stages clear
A — Automate: make repeatable steps executable and reproducible
P — Preserve: retain provenance, parameters, context, and relevant intermediate states
E — Evaluate: check transformations and results throughout the workflow
Not a rigid sequence, but a set of principles for designing better data-processing workflows.
A Splitting Architecture for Exact Reduced Coulomb Friction
Hongcheng Song, Ye Fan, Uri M. Ascher, Dinesh K. Pai
https://arxiv.org/abs/2607.19599 https://arxiv.org/pdf/2607.19599 https://arxiv.org/html/2607.19599
arXiv:2607.19599v1 Announce Type: new
Abstract: Existing approaches to frictional contact dynamics typically either modify the Coulomb law to improve numerical robustness or solve the exact law in a fully coupled monolithic form. However, in its reduced form, exact Coulomb friction can be written as a cone complementarity problem with an augmented velocity, which reveals a natural split between a cone-constrained linear response and a scalar non-associated coupling induced by tangential velocity. We exploit this structure in the solver design. Our method uses an outer iteration to update the non-associated coupling explicitly, and an inner solve for a strongly convex cone-constrained quadratic program. This separation also makes the inner solver modular, so different numerical schemes can be used without changing the outer iteration. We evaluate the method on rigid-body benchmarks with stick-slip transitions and frictional stacking, and show that it reproduces exact Coulomb complementarity without smoothing or relaxing the friction law.
toXiv_bot_toot
Collinear Laser Spectroscopy of the $1s2s\,^3\!S_1\rightarrow 1s2p\,^3\!P_{0,2}$ Transitions in Helium-like $^{11}$B$^{3 }$
Axel Bu{\ss}, Konstantin Mohr, Volker Hannen, Zoran Andelkovic, Max Horst, Phillip Imgram, Kristian K\"onig, Bernhard Maass, W. N\"ortersh\"auser, Simon Rausch, Rodolfo S\'anchez, Christian Weinheimer
https://
Distance Matrices of Ordered Point Clouds and Their Persistent Homology
David Hien
https://arxiv.org/abs/2608.12620 https://arxiv.org/pdf/2608.12620 https://arxiv.org/html/2608.12620
arXiv:2608.12620v1 Announce Type: new
Abstract: The distance matrix of a finite point cloud can be visualized as a heatmap. When the data arise from a time series, the sublevel sets of this image are known as recurrence plots and are widely used in time series analysis. Motivated by this perspective, we establish a relationship between the distance-matrix filtration of the time series and the \v{C}ech (or Vietoris--Rips) filtration of its state-space embedding in the form of a degree-one chain map. We study the induced maps in homology, showing that the map from $H_0$ into $H_1$ is essentially surjective and providing an example where the map from $H_1$ into $H_2$ is nontrivial. These chain maps can be applied to simplify image persistence computations arising in the computation of cycling signatures, a topological tool for time series analysis. Moreover, these computations yield finer information that allows the analysis of transitions between different types of cycling motion.
toXiv_bot_toot
Toroidal Transitions in Hydrogenic and Alkali Atoms
Kai Xiang Lee, Vincent Mancois, Kelvin Lim, David Wilkowski
https://arxiv.org/abs/2607.19832 https://ar…
Replaced article(s) found for nlin.CD. https://arxiv.org/list/nlin.CD/new
[1/1]:
- Functorial invariants for chaos topology from data
Denisse Sciamarella
https://arxiv.org/abs/2602.18463 https://mastoxiv.page/@arXiv_mathDS_bot/116124660469491923
- Noise-Induced Transitions and Coherence Resonance in a 5D Conductance-Based Neuronal Model
Yefan Wu
https://arxiv.org/abs/2605.04088 https://mastoxiv.page/@arXiv_qbioNC_bot/116532225216205715
toXiv_bot_toot
Replaced article(s) found for q-bio.NC. https://arxiv.org/list/q-bio.NC/new
[1/1]:
- State-dependent brain responsiveness, from local circuits to the whole brain
A. Destexhe, et al.
https://arxiv.org/abs/2510.07956 https://mastoxiv.page/@arXiv_qbioNC_bot/115349048459649454
- Noise-Induced Transitions and Coherence Resonance in a 5D Conductance-Based Neuronal Model
Yefan Wu
https://arxiv.org/abs/2605.04088 https://mastoxiv.page/@arXiv_qbioNC_bot/116532225216205715
- Dynamical Archetype Analysis: Autonomous Computation
Abel Sagodi, Il Memming Park
https://arxiv.org/abs/2507.05505 https://mastoxiv.page/@arXiv_mathDS_bot/114822419091532686
- Active Electrosensing and Communication in MARL-trained Weakly Electric Fish Collectives
Singh, Johnson-Yu, Lu, Walsman, Pedraja, Turcu, Sharma, Saphra, Sawtell, Rajan
https://arxiv.org/abs/2511.08436 https://mastoxiv.page/@arXiv_csNE_bot/115535586856745674
toXiv_bot_toot
Lee-Yang paradigm of phase transition in eigenstate thermalized systems
Yongjiang Xu, Weixin Sun, Chushun Tian, Huajia Wang
https://arxiv.org/abs/2608.13174 https://arxiv.org/pdf/2608.13174 https://arxiv.org/html/2608.13174
arXiv:2608.13174v1 Announce Type: new
Abstract: As phase transitions in isolated quantum systems remain elusive, here we show how a thermodynamic-like phase transition, falling into the Lee-Yang paradigm, can arise in systems displaying eigenstate thermalization. Specifically, we show that in holographic conformal field theories, the eigenstate expectation of the auto-correlation function can be mapped to the partition function ${\cal Z}_{{gauge}}(z)$ of a virtual interacting instanton gas, with the conformal mapping of the imaginary time: $z=1-e^{-\tau}$ and the central charge $c$ mimicking the instanton fugacity and volume, respectively. We find that akin to the Lee-Yang paradigm, for $c\to\infty$ a pair of complex conjugate zeros of ${\cal Z}_{{gauge}}(z)$ move to the real axis located at the famous forbidden singularity. Passing through the singularity the system transits from the low- to high-fugacity phase, accompanied by dramatic changes in scaling behaviors of the free energy and dominant microscopic configurations. Our findings indicate that physics of phase transitions from eigenstate thermalization is very rich.
toXiv_bot_toot
Replaced article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- Fault-tolerant hyper-Ramsey spectroscopy of ultra-narrow clock transitions with dynamical decoupling
B. Ilikj, T. Zanon-Willette, D. Wilkowski, B. Darqui\'e, N. V. Vitano…
Statistical periodicity in noise-induced order from Ruelle-Pollicott resonances
Yuzuru Sato, Isaia Nisoli
https://arxiv.org/abs/2607.18771 https://arxiv.org/pdf/2607.18771 https://arxiv.org/html/2607.18771
arXiv:2607.18771v1 Announce Type: new
Abstract: Noise-induced order (NIO) is a paradigmatic example of nontrivial noise-induced phenomena, characterized by pronounced spectral peaks and pseudoperiodic dynamics. We show that this periodicity is governed by the Ruelle-Pollicott resonances of the annealed transfer operator, independently of dynamical stability. Exact results for an analytically solvable model and numerical results for a modified Lasota--Mackey map show excellent agreement between resonance-based predictions and empirical power spectra across a broad range of noise amplitudes. Independent transitions in stability, diagnosed by the Lyapunov exponent, and statistical periodicity, diagnosed by the Ruelle-Pollicott resonances, give rise to three distinct types of NIO.
toXiv_bot_toot
Phase transition from eigenstate thermalization: forbidden singularity and instanton proliferation via AGT correspondence
Yongjiang Xu, Weixin Sun, Chushun Tian, Huajia Wang
https://arxiv.org/abs/2608.13246 https://arxiv.org/pdf/2608.13246 https://arxiv.org/html/2608.13246
arXiv:2608.13246v1 Announce Type: new
Abstract: In theoretical physics, finding connections between problems that appear in distinct contexts is an important way to leapfrog progresses, often by illuminating deep aspects that may otherwise seem obscure. In this paper, we consider in 2d CFTs the phenomenon of forbidden singularities in auto-correlation functions -- a key signature of eigenstate thermalization. We show that they correspond to phase transitions in the context of eigenstates. The connection is made explicit by utilizing the AGT correspondence, which relates eigenstate auto-correlations to the Nekrasov partition functions describing an instanton gas of the $\mathcal{N}=2$ SUSY gauge theories. We show that by taking the counter-part of the heavy-light limit, two phases emerge for the instanton gas. They are dominated by configurations represented by string-like Young tableaux with distinct structures and thermodynamic properties, which bare resemblance to the confined and the deconfined phases. A phase transition occurs as instantons proliferate from one side, in a manner that mimics the Lee-Yang theory. We work out the critical fugacity and find it corresponding exactly to the forbidden singularity.
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