Tootfinder

Quite happy with how the page/component lifecycle log messages are coming along as part of my push to get the new stateful components over the line in Kitten¹.
This should make it very easy to ensure that things are happening as you think they are and to conceptualise the behaviour of your stateful component hierarchies. (You can also use stateless components, of course, as is the currently documented workflow.)
¹

[2026-05-07 Thu (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
toXiv_bot_toot

Adding files to notes in @… is now live! Now I'm adding bulk editing. So many new features. I can't wait to write about them.

cursed TIL of the day:
posix_spawn is a fork() and exec() in a trenchcoat1️⃣
1️⃣ on Linux
https://lwn.net/SubscriberLink/1076018/e741fe3071f0bf0a/

Replaced article(s) found for stat.ME. https://arxiv.org/list/stat.ME/new
[3/3]:
- Detecting Perspective Shifts in Multi-agent Systems
Eric Bridgeford, Hayden Helm

The IIIF Universal Viewer community is on fire - a new release a few days ago, and look at all those contributors! It's especially exciting to see new contributors
Release v4.3.0 · GitHub https://github.com/UniversalViewer/universalviewer/releases/tag/v4…

Release v4.3.0 · UniversalViewer/universalviewer
What's Changed Highlights of changes/additions: Outcomes from the Developer Experience sprint: New interactive configuration editor on the example index page Several external components reintegra...

Metric Facility Assignment with Partial Information
Vasilis Gkatzelis, Hasti Karimi, Emma Rewinski, Maziar Shamsipour, Alexandros A. Voudouris
https://arxiv.org/abs/2606.05905 https://arxiv.org/pdf/2606.05905 https://arxiv.org/html/2606.05905
arXiv:2606.05905v1 Announce Type: new
Abstract: We study an assignment problem where a set of agents and a set of facilities lie on a line metric. The goal is to compute an assignment of agents to facilities to approximately minimize the social cost (the total distance of agents from their assigned facilities) given only partial information regarding the metric. Unlike previous work which focused solely on algorithms with access to the ordinal preferences of the agents over the facilities (ORD), we also consider the value of information regarding approval preferences (APP), and inter-facility distances (DIST). For different combinations of these three information types, we establish tight bounds on the distortion of deterministic algorithms, showing that it is possible to improve over the optimal bound of $3$ that can be achieved using only ORD information. Among other results, we show a tight bound of $1 \sqrt{2}$ for APP DIST which holds even for general metrics, and a tight bound of $2$ for ORD APP DIST.
toXiv_bot_toot

HVPE Growth of Si-Doped $\beta$-Ga$_2$O$_3$ on Sapphire: Influence of Substrate Offcut on Structural and Electrical Properties
Sourav Sarker, Saleh Ahmed Khan, Ahmed Ibreljic, Anhar Bhuiyan
https://arxiv.org/abs/2606.05607

🤝 Meet the #TNC26 partners – Part 1!
From Platinum to Bronze, we're excited to welcome all the organisations supporting this year's edition in Helsinki 🇫🇮
What’s coming back this year?
🔸 The TNC Exchange – a lively, open space with partners’ booths, cosy meeting corners, and plenty of opportunities to connect, catch up and even get a taste of some Finnish treats!

Another tale of the closed web: a common thing on Instagram is that it doesn't send out Co-Post requests when you do it too often or they don't like you. It's one of the aspects or levels of being “shadowbanned”.
I often work with various kinds of accounts to publish my essays on Instagram to get more exposure. For example, pages dedicated to criticizing the police (useless.cops) or accounts showcasing ICE activity in Minnesota (MNicewatch) for my essay on Renée Good…

I'll be doing a full write-up soon, but sharing now because I'm so excited.
@… just approved my #SEO plugin 🎉
https:/…

[2026-06-04 Thu (UTC), 3 new articles found for cs.MA Multiagent Systems]
toXiv_bot_toot

[2026-05-06 Wed (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
toXiv_bot_toot

Loop Space Splittings for Codimensional Sphere Bundles
Wen Shen
https://arxiv.org/abs/2606.03072 https://arxiv.org/pdf/2606.03072 https://arxiv.org/html/2606.03072
arXiv:2606.03072v1 Announce Type: new
Abstract: In this paper, we establish two loop decomposition theorems for sphere bundles of real vector bundles under appropriate connectivity and characteristic class assumptions. Specifically, we treat two families of sphere bundles: those arising from rank-$(n-1)$ vector bundles and those from rank-$(n-3)$ vector bundles over closed smooth $n$-manifolds.
toXiv_bot_toot

GNStor: Design of GPU-Native High-Performance Remote All-Flash Array
Shushu Yi, Wenbo Wu, Guoci Chen, Junrong Zhu, Shengwen Liang, Mao Bo, Chenying Huan, Chen Tian, Jie Zhang
https://arxiv.org/abs/2606.04908 https://arxiv.org/pdf/2606.04908 https://arxiv.org/html/2606.04908
arXiv:2606.04908v1 Announce Type: new
Abstract: GPU has become the leading computing device for a wide range of data-intensive applications, which tightly collaborates with remote all-flash array (AFA) to accommodate ever-expanding datasets, facilitate multi-client data sharing, and guarantee fault tolerance. Although GPU is the center of computation, all I/O processes in existing GPU-AFA systems are still CPU-centric. CPU orchestrates remote I/O requests and executes a centralized AFA engine to take charge of AFA-level functionalities (e.g., access control and metadata persistence). This design disparity suffers from substantial CPU-GPU interaction overhead and I/O traffic amplification, compromising end-to-end I/O performance.
In this work, we present \emph{GNStor}, a GPU-native AFA system that enables GPU to directly access remote AFA without CPU intervention in the I/O path, thereby fully exploiting the performance of AFA. Specifically, GNStor first proposes a GPU-centric NVMe over RDMA (NoR) software stack (named \emph{GNoR}), paving a fast path for GPUs to directly initiate NoR I/O requests to SSDs within remote AFA. GNoR employs an atomic-operation-based I/O orchestration design and follows the single-instruction-multiple-thread (SIMT) execution model of GPU, fully exploiting the massive parallelism of GPU architectures. To facilitate essential AFA functionalities in a CPU-bypass I/O path, GNStor further designs \emph{deEngine}, a decentralized AFA engine that seamlessly decomposes and integrates AFA-level tasks into each SSD firmware, thereby achieving efficient AFA access at low cost. Evaluation results show that GNStor achieves 3.2$\times$ higher I/O throughput and reduces application execution time by 31.1\%, compared to state-of-the-art AFA systems.
toXiv_bot_toot

[2026-07-03 Fri (UTC), 3 new articles found for physics.geo-ph Geophysics]
toXiv_bot_toot

Replaced article(s) found for stat.ME. https://arxiv.org/list/stat.ME/new
[2/3]:
- Directional-Shift Dirichlet ARMA Models for Compositional Time Series with Structural Break Inter...
Harrison Katz

Regret Minimization in Single-Dimensional Contract-Design with Binary Actions
Riccardo Poiani, Martino Bernasconi, Andrea Celli
https://arxiv.org/abs/2606.06125 https://arxiv.org/pdf/2606.06125 https://arxiv.org/html/2606.06125
arXiv:2606.06125v1 Announce Type: new
Abstract: We study principal-agent problems in which a principal commits to an outcome-dependent payment scheme (i.e., a contract) in order to induce an agent to take a costly action leading to a favorable outcome. We consider the online extension of the classical (one-shot) principal-agent problem, in which the principal repeatedly interacts with agents by proposing contracts over multiple rounds. The principal has no information about the agents and, crucially, does not observe their actions. As a result, the principal must learn an optimal contract using only the realized outcomes observed at each round. We focus on the setting with binary actions and single-dimensional agent types, where the agent's private type represents their cost per unit-of-effort. For adversarial-type sequences, we provide tight $\Theta(T^{2/3})$ regret guarantees. Remarkably, this rate is completely independent of the number of outcomes $m$. The upper bound is based on two key components: 1) a reduction to a one-dimensional threshold optimization problem and 2) a non-uniform discretization to handle the non-Lipschitz nature of the problem. Moreover, in the case of a single (fixed) hidden type, we show that it is possible to improve the rates and provide a tight $\widetilde{\Theta}(\sqrt{T})$ regret bound. Our algorithm is based on an explore-then-commit strategy where we first approximately learn the hidden type via a stochastic binary search, and then we commit to a ``robustified'' near-optimal contract.
toXiv_bot_toot

SCOTUS voted 6-3 to uphold birthright citizenship & in response, Trump ballwasher, Clarence Thomas, wrote a 91-PAGE DISSENT.
✅ Birthright citizenship ruling: Supreme Court rejects Trump's proposed limits | AP News
https://apnews.com/article/su…

»Ausharren in der Todeszone«
Der Artikel in der FAZ beschreibt sehr eindrücklich, die Lage in der #Ukraine. Drohnen überwachen dort alles. Sobald sich jemand bewegt, ist das das Todesurteil. Ablösungen von Leuten dauern Wochen bis Monate. Die Bergung von Verletzten ebenso lange.

Replaced article(s) found for quant-ph. https://arxiv.org/list/quant-ph/new
[3/5]:
- Fundamental Limitations of QAOA on Constrained Problems and a Route to Exponential Enhancement
Chinonso Onah, Kristel Michielsen
https://arxiv.org/abs/2511.17259 https://mastoxiv.page/@arXiv_quantph_bot/115604063563298977
- Sharing quantum indistinguishability with multiple parties
Lemieux Wang, Hanwool Lee, Joonwoo Bae, Kieran Flatt
https://arxiv.org/abs/2512.15199 https://mastoxiv.page/@arXiv_quantph_bot/115740075668663194
- Quantum thermodynamics, quantum correlations and quantum coherence in accelerating Unruh-DeWitt d...
Bachain, Amazioug, Laamara, Nisar, Zakarya, Ismail, Abdel-Aty
https://arxiv.org/abs/2512.18123 https://mastoxiv.page/@arXiv_quantph_bot/115768302468735679
- Wigner Cat Phases: A finely tunable system for exploring the transition to quantum chaos
M. S\"uzen
https://arxiv.org/abs/2512.22169 https://mastoxiv.page/@arXiv_quantph_bot/115807528778934437
- A saturation-absorption rubidium magnetometer with multilevel optical Bloch-equation modeling for...
Dangi, Gupta, Kasti, Vishwanath, Zepp, Smith, Geiger, Choy
https://arxiv.org/abs/2601.09115 https://mastoxiv.page/@arXiv_quantph_bot/115898368405478505
- Quantum Entanglement, Stratified Spaces, and Topological Matter: Towards Entanglement-Sensitive L...
Kazuki Ikeda, Steven Rayan
https://arxiv.org/abs/2601.13467 https://mastoxiv.page/@arXiv_quantph_bot/115933232875600453
- Residual-Squeezing Mechanism of Mismatch in Inverse-Squeezing Kennedy Receivers
Bai, Sun, Wu, Ran, Zhou, Zhang, Peng, Dong, Tong, Zhang, Li
https://arxiv.org/abs/2601.19093 https://mastoxiv.page/@arXiv_quantph_bot/115972142241455241
- Recirculating Quantum Photonic Networks for Fast Deterministic Quantum Information Processing
Emil Grovn, Matias Bundgaard-Nielsen, Jesper M{\o}rk, Dirk Englund, Mikkel Heuck
https://arxiv.org/abs/2602.11033 https://mastoxiv.page/@arXiv_quantph_bot/116057137426725312
- Coupled integrated photonic quantum memristors using a single photon source made of a colour center
Baldazzi, Ancel, Guaraldo, Fattori, Chen, Akar, Deturche, Azzini, Couteau, Pavesi
https://arxiv.org/abs/2602.14736 https://mastoxiv.page/@arXiv_quantph_bot/116085940182705111
- Generating function and Bloch representation for quantum Fisher tensor
Felipe P. Abreu, Wei Chen
https://arxiv.org/abs/2603.04615 https://mastoxiv.page/@arXiv_quantph_bot/116181633051356644
toXiv_bot_toot

[2026-05-01 Fri (UTC), 3 new articles found for q-bio.NC Neurons and Cognition]
toXiv_bot_toot

Navigating committor landscape of biomolecules with a general pairwise interaction model
Jintu Zhang, Zichang Jin, Huifeng Zhao, Kai Zhu, Bowei Zhao, Xujun Zhang, Peilin Kang, Tingjun Hou
https://arxiv.org/abs/2606.31832 https://arxiv.org/pdf/2606.31832 https://arxiv.org/html/2606.31832
arXiv:2606.31832v1 Announce Type: new
Abstract: Sampling rare conformation transitions between metastable states is a central challenge in atomistic simulations. While the committor function serve as an ideal reaction coordinate for driving enhanced sampling, their high-dimensional inputs and complex functional forms limit the efficacy of standard feedforward neural networks in modeling them. Inspired by recent breakthroughs in biomolecular structure prediction, we propose a novel committor learning framework grounded in the AlphaFold 3 paradigm. By integrating a lightweight, differentiable atom-level embedding with a simplified Pairformer architecture, our method inherently captures intricate dynamical features of diverse biosystems without requiring specialized prior knowledge. We demonstrate the superior expressiveness and accuracy of the proposed framework across multiple atomistic processes. For the folding of the chignolin mini-protein, our model reveals the finer-grained structure of its transition state ensemble (TSE) and a detailed bifurcated reaction mechanism. Furthermore, for calixarene host-guest systems, we develop a unified committor model that elucidates how ligand substituents regulate the ratio between distinct binding pathways, offering new perspectives for structure-based drug design.
toXiv_bot_toot

Indeed. Try for yourself, you will be astonished!
#Primes
https://www.math.uchicago.edu/~luis/allprimes.html

Replaced article(s) found for stat.ME. https://arxiv.org/list/stat.ME/new
[1/3]:
- Quasi-maximum likelihood estimation for scalable ARMA models
Yuchang Lin, Wenyu Li, Qianqian Zhu

A parasite that has been eating people for 3,500 years is about to be wiped off the planet.
It infected 3.5 million people in 1986.
Last year, it infected 10. And I have not seen it make a single front page
https://www.resete…

Guinea worm is close to being the second disease eradicated in history, following smallpox
https://www.euronews.com/health/2026/02/04/guinea-worm-is-close-to-being-the-second-disease-eradicated-in-history-following-smallpox You may have seen this online at some point, a long white worm being pulled from someone's leg, looking almost like a white string. This worm has been plaguing...

Das verdeckte #Lobby-Netzwerk hinter dem Widerstand gegen #Windkraft
h…

A structural reduction for the symmetric hit problem in four variables
Dang Vo Phuc
https://arxiv.org/abs/2606.02626 https://arxiv.org/pdf/2606.02626 https://arxiv.org/html/2606.02626
arXiv:2606.02626v1 Announce Type: new
Abstract: Let $\mathcal{A}$ be the mod $2$ Steenrod algebra, and $P(n) = \mathbb{F}_2[x_1, \dots, x_n]$ be the polynomial algebra viewed as an unstable module over $\mathcal{A}$. The symmetric hit conjecture asks whether the symmetrization of a hit monomial in $P(n)$ is always hit in the symmetric invariant subalgebra $B(n) = P(n)^{\Sigma_n}$. While resolved for $n \leq 3$, the case $n=4$ presents significant obstructions due to combinatorial complexity, orbit cancellations intrinsically tied to $\Sigma_4$-stabilizers, and the emergence of strongly spike-free survivor modules. This paper introduces a conditional structural reduction to overcome these obstructions in the domain where the numerical weight satisfies $\mu(d) \leq 4$. By integrating Walker-Wood duality with a new $\Sigma_4$-stabilizer parity analysis, we reduce the global conjecture to localized algebraic conditions: a symmetric lower-spike reduction and a strengthened four-row digital-engineering hypothesis. Assuming these inputs, the conjecture follows by lexicographic induction on the column-sum and row-sum sequences of the binary exponent matrices.
Our approach isolates the four-variable repeated-row anomaly into exact local identities, utilizing global Steenrod-kernel functionals lifted from local spike-free quotients to detect potential survivor elements. Finally, we provide explicit monomial-level computations in degrees $8$, $12$, and $14$, explicitly illustrating the stabilizer mechanism in practice and framing the precise algebraic identities required for a future unconditional proof.
toXiv_bot_toot

Charles Snowden Signing Puts 3 Cowboys Edge Rushers on Notice https://insidethestar.com/charles-snowden-signing-puts-3-cowboys-edge-rushers-on-notice

Ach ja und dann hier gleich noch einer der wichtigsten Links im ganzen Internet:
#Dune

Got an Amber Alert today, and my weather app, @…, did a better job than the state of Tennessee. In fact, TN failed, as they do at most things lately.
The alert from TN had a Bitly link (already looks suspicious) that goes to a Facebook page that requires you to login. :picard:

Nothing exciting.
Dump header from device: /dev/ada0p2
Architecture: amd64
Architecture Version: 2
Dump Length: 352296960
Blocksize: 512
Compression: none
Dumptime: 2026-05-11 11:12:18 0100
Hostname: maximal
Magic: FreeBSD Kernel Dump
Version String: FreeBSD 16.0-CURRENT main-n286271-ee41a882054c GENERIC-NODEBUG
Panic String: page fault
Dump Parity: 3402006143
Bounds: 3
Dump Status: good

Axion-mediated electron-electron interaction in RaOCH_3 molecule
Anna Zakharova, Mikhail Reiter
https://arxiv.org/abs/2605.02833 https://arxiv.org/pdf/2605…

Did you miss our pop-up exhibition developed by Katelyn Stauffer’s spring 2026 class POLS 4575H: Women in US Politics? You can now experience “Pretty Politics: Women as Symbols, Women as Subjects” on our website, preserving the work of these students and finding new ways to look at our collection.
https…

Crosslisted article(s) found for math.KT. https://arxiv.org/list/math.KT/new
[1/1]:
- Tensor Product $K$-theory is Rational Algebraic $K$-theory
Amartya Shekhar Dubey, Mattie Ji
https://arxiv.org/abs/2606.11412 https://mastoxiv.page/@arXiv_mathAT_bot/116730325434235648
- Singular Hochschild complex and Cartan matrix
Yu Wang, Xiaozhuan Liang
https://arxiv.org/abs/2606.11641 https://mastoxiv.page/@arXiv_mathRT_bot/116730476237642683
- On the metalinear algebraic cobordism spectrum
Ahina Nandy, Egor Zolotarev
https://arxiv.org/abs/2606.12001 https://mastoxiv.page/@arXiv_mathAT_bot/116730372453944008
- Schubert Calculus and uniform property $\Gamma$
Andrew S. Toms
https://arxiv.org/abs/2606.12188 https://mastoxiv.page/@arXiv_mathOA_bot/116730411158202145
- A non-trivial index difference on surfaces of genus at least $3$
Samuel Lockman
https://arxiv.org/abs/2606.12283 https://mastoxiv.page/@arXiv_mathDG_bot/116730423151573054
toXiv_bot_toot

Call Out the Broken Rogers-Shaw Deal
Back in 2023, Canadians were told our government was putting conditions on the $26B Rogers-Shaw deal that would make it a win for all of us. The deal would be closely monitored and came with teeth: binding commitments with up to $1 billion in penalties for non-compliance.1
Three years later, the spirit of that promise is being broken in plain sight. Rogers' own public disclosures reveal that commitments on job creation, 5G expansion, fair …

Call Out the Broken Rogers-Shaw Deal
Canadians were promised the Rogers-Shaw deal would benefit all of us. 3 years in, Rogers is falling short on jobs, 5G, prices, and service.💥 ISED has done nothing! Tell Minister Joly to act on what the government promised. 👉 https://openmedia.org/CallOutRogers

Replaced article(s) found for cs.LG. https://arxiv.org/list/cs.LG/new
[3/11]:
- Linear Mode Connectivity under Data Shifts for Deep Ensembles of Image Classifiers
C. Hepburn, T. Zielke, A. P. Raulf

Fairness and Strategy-Proofness in Automated Market Makers
Frank M. V. Feys
https://arxiv.org/abs/2606.04959 https://arxiv.org/pdf/2606.04959 https://arxiv.org/html/2606.04959
arXiv:2606.04959v1 Announce Type: new
Abstract: No deployed automated market maker lets its liquidity providers vote on the trading function. We show this is structural, not an oversight. On the weighted-product family with $n \geq 3$ assets, no aggregation rule is at once fair and strategy-proof. Arrovian fairness forces a unique form, the weighted Aitchison centroid, the weighted geometric mean of the providers' preferred pools. But fairness forces mean-type aggregation and strategy-proofness forces median-type, and the only rule that is both is a single-provider dictator. The obstruction is sharp: it vanishes at $n = 2$, where a fair strategy-proof rule exists. Under the Frongillo--Papireddygari--Waggoner equivalence, the centroid is Genest's logarithmic opinion pool, and the impossibility transfers to externally Bayesian pooling.
toXiv_bot_toot

Atmosphere as a steam engine
Anastassia Makarieva, Andrei Nefiodov
https://arxiv.org/abs/2605.23875 https://arxiv.org/pdf/2605.23875 https://arxiv.org/html/2605.23875
arXiv:2605.23875v1 Announce Type: new
Abstract: Earth's atmosphere operates a steam cycle in which water vapor evaporates from the surface, expands, condenses, and returns as precipitation. The Clausius-Clapeyron law relates the incremental expansion work of saturated water vapor to latent heat converted at a Carnot efficiency corresponding to the temperature difference between evaporation and condensation. We generalize this relation to an atmospheric column with condensation occurring over a range of heights and derive the expansion work per mole of precipitated water. This includes the gravitational work associated with lifting moist air to the mean condensation height, the expansion work generated by condensation, and a correction for incomplete condensation. Using GPCP v3.3 precipitation and observational constraints on condensation height, we estimate the global steam-engine power as $W_v=4.4\pm0.9$ W/m2, close to an independent estimate of total atmospheric power, $W=W_P W_K\simeq4.3\pm0.6$ W/m2, obtained from the gravitational power of precipitation and kinetic energy generation by horizontal pressure gradients diagnosed from MERRA-2. Kinetic energy generation is $W_K\simeq3.2\pm0.3$ W/m2, of which at least two thirds is generated in the lower atmosphere. The smaller upper-atmospheric contribution, dominated by temperature-related pressure gradients, is comparable to Lorenz available potential energy generation. The agreement between steam-engine and atmospheric power is linked to condensation and precipitation fallout. By removing water from the atmospheric gas phase and enabling column-mass redistribution, precipitation maintains surface pressure gradients that drive cross-isobaric flow in the frictional lower atmosphere. The steam-engine framework thus provides a thermodynamic basis for condensation-induced atmospheric dynamics and identifies a major lower-atmospheric power pathway associated with water phase transitions.
toXiv_bot_toot

[2026-06-02 Tue (UTC), 3 new articles found for cs.OS Operating Systems]
toXiv_bot_toot

Still accelerating - type Ia supernova #cosmology is robust to host galaxy age evolution: https://academic.oup.com/mnras/article/549/3/stag797/8703725?login=false -> Universe expansion still accelerating say astronomers / 'Crisis averted' as experts confirm universe's expansion IS accelerating: https://www.southampton.ac.uk/news/2026/06/universe-expansion-still-accelerating-say-astronomers.page / https://ras.ac.uk/news-and-press/research-highlights/crisis-averted-experts-confirm-universes-expansion-accelerating

Magnetic resonance imaging assessment of the suitability and consistency of radiotherapy treatment positioning achieved using intra-oral stents
Tanya Kairn (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia, Queensland University of Technology, Brisbane Qld, Australia), Philip Chan (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), Benjamin Chua (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), Susannah Cleland (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia), Jodi Dawes (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia), Lizbeth Kenny (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), Charles Y. Lin (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), William R. McDowall (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia), Tania Poroa (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia), Scott B. Crowe (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia, Queensland University of Technology, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia)
https://arxiv.org/abs/2606.25210 https://arxiv.org/pdf/2606.25210 https://arxiv.org/html/2606.25210
arXiv:2606.25210v1 Announce Type: new
Abstract: As head-and-neck radiotherapy treatments grow more complex and precise, it becomes increasingly important to assess the anatomical separations that can be achieved using intra-oral stents. A series of twenty T2-weighted turbo spin echo magnetic resonance images (MRI) were acquired of one healthy participant, with a range of different wax and 3D printed intra-oral stents in situ. The resulting measurements showed that a 3D printed modular stent containing hard polylactic acid (PLA) and flexible thermoplastic polyurethane (TPU) components made the largest and most reproducible separation between the cheeks (70.8 /- 0.3 mm), two hard PLA stents designed to exactly fit the participant's teeth produced the poorest positioning reproducibility (standard deviations of up to 3 mm between a range of landmarks measured in repeated images). Most stents were described as ``comfortable'' although the wax stents left small pieces of wax attached to the teeth after use. This MRI based comparison demonstrated that the materials and designs used for intra-oral stents can have substantial effects on the level of anatomical separation and positioning reproducibility that they produce.
toXiv_bot_toot

Last.fm users, give this one a vote (upper left) - https://support.last.fm/t/limit-the-number-of-artist-photo-uploads/118521
@…@…

Limit the number of artist photo uploads
As long as multiple artists share the same page then photo battles are always going to part of LastFM but, more and more, I'm seeing people simply flood the photo section with dozens of images in an attempt to drown out any possible alternatives. I propose limiting users to ONE image upload per artist. Pages don't need 100+ images, all uploaded by the same 2-3 people.

Improved Approximation Guarantees for Groupwise Maximin Share Fairness
Georgios Amanatidis, Anna Korfiati, Evangelos Markakis, Christodoulos Santorinaios
https://arxiv.org/abs/2606.04731 https://arxiv.org/pdf/2606.04731 https://arxiv.org/html/2606.04731
arXiv:2606.04731v1 Announce Type: new
Abstract: We study the problem of fairly allocating a set of indivisible goods to a set of $n$ agents with additive valuation functions. We focus on the very demanding notion of \textit{groupwise maximin share fairness} (GMMS), which requires that each agent $i$ receives value comparable to their maximin share, where the latter is computed \textit{with respect to any subset of agents that contains $i$}. We show that it is possible to compute $(\phi-1)$-approximate GMMS allocations in polynomial time, where $\phi \approx 1.618$ is the golden ratio). This improves on the previously known guarantee of $4/7$ of Chaudhury et al. [SICOMP; 2021] and Amanatidis et al. [TCS; 2020]. We propose a simple algorithm that maintains the same main properties as the Draft-and-Eliminate algorithm of Amanatidis et al. [TCS, 2020] and we improve on the approximation guarantee analysis by carefully bounding the relevant value within any subinstance induced by the restriction of our allocation to a subset of agents. Our analysis is asymptotically tight for algorithms that share these properties and has the additional benefit of giving improved guarantees for restricted settings; in particular, when the agents agree on the top $n$ goods or when the number of agents is small. To illustrate the challenges of going beyond the guarantees of our algorithm, we also present a variant with an improved approximation of $(\sqrt{10}-1)/3 \approx 0.72$ for the case of three agents. To achieve this improvement we partially characterize the maximin share guarantees of short picking sequences for a small number of goods.
toXiv_bot_toot

Ionization energies for Rydberg $^4 \mathrm{He}$ ($1snp\,^{1,3}P$) states using the correlated B-spline basis function method
Jing Chi, Hao Fang, Yong-Hui Zhang, Li-Yan Tang, Ting-Yun Shi
https://arxiv.org/abs/2606.04768

Was man nicht "mal eben schnell" kaufen kann, kann man häufig selber bauen. So z. B. Computermäuse in der DDR. Den kompletten Artikel findet ihr im Heft practic 3/88 im @… Enjoy: http…

[2026-04-29 Wed (UTC), 3 new articles found for q-bio.NC Neurons and Cognition]
toXiv_bot_toot

[2026-06-19 Fri (UTC), 3 new articles found for cs.FL Formal Languages and Automata Theory]
toXiv_bot_toot

Designing single-layer PDMS devices for micron to millimeter-scale deformations
Leon Valentin Gebhard, Alexandre S. Avaro, Gabriel Amselem, Charles N. Baroud
https://arxiv.org/abs/2605.17402 https://arxiv.org/pdf/2605.17402 https://arxiv.org/html/2605.17402
arXiv:2605.17402v1 Announce Type: new
Abstract: The elasticity of PDMS has played a central role in advancing important microfluidic technologies, ranging from early valves to sophisticated organ-on-a-chip systems. However, most deformable microfluidic devices are based on geometries that require complex multi-layer PDMS architectures and include thin membranes, leading to difficult microfabrication and poor stability. Recently, Jain, Belkadi et al. (Biofabrication 16.3 (2024): 035010) introduced a single-layer device in which a wide and long microfluidic channel was deformed by controlling the pressure in two independent and adjacent air chambers. While they demonstrated the ability to deform the channel ceiling to compress biological materials, the design parameters remain unexplored. Here, we perform a numerical study on 14,336 variants of this device and identify the height of the PDMS layer, the width of the microchannel and the width of the air chamber as the main features that determine the ceiling deformation. Three deformation modes are observed as the geometrical parameters are varied: A U shape with a central minimum, a W shape with two minima and a central maximum, or an inverse U shape with an upward-bulging single maximum. The numerical results are validated in experiments that reproduce the three shapes for the predicted geometries and demonstrate vertical ceiling deformations ranging from a few microns to the millimeter scale. The generality of this approach is demonstrated for two example applications: A fully closing single-layer microfluidic valve and an optical lens of controllable anisotropy. This work leverages the rapid prototyping enabled by 3D printing or micro-milling to open new perspectives in microfluidic actuation.
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Crosslisted article(s) found for cs.LG. https://arxiv.org/list/cs.LG/new
[3/8]:
- Variational Consensus Monte Carlo for Bayesian Mixture
Julie Fendler, Francesca L. Crowe, Tom Marshall, Sylvia Richardson, Paul D. W. Kirk

My :forgejo: #forgejo now takes >20s to load the activity page 🤡
This is on cold starts, subsequent refreshes are fast. I think I have reached the limit storing forgejo's data on a WD4TB USB disk, using an sqlite database and having a *ridiculous* amount of commits due to :gitannex: #gitAnnex

[2026-04-14 Tue (UTC), 3 new articles found for nlin.CG Cellular Automata and Lattice Gases]
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[2026-06-03 Wed (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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The Brain That Goes Quiet: Serving a Large Model's Knowledge at 131 Tokens per Second on an 8 GB Laptop by Removing the Large Model from the Runtime Path
Myeong Jun Jo
https://arxiv.org/abs/2606.12154 https://arxiv.org/pdf/2606.12154 https://arxiv.org/html/2606.12154
arXiv:2606.12154v1 Announce Type: new
Abstract: In earlier work I showed that a 35B-class Mixture-of-Experts model can be loaded and executed on a consumer laptop with 8 GB of GPU memory. That result solved a placement problem and immediately exposed a different one: even correctly placed, the large model needed roughly four seconds to answer, because it was still being invoked at every query. This paper documents what happened when I stopped invoking it. During an offline phase, the large model reads source documents and writes verified answer entries into a structured knowledge store; at runtime, only a lightweight router, a deterministic renderer, and a 1B-class model are active. On the same 8 GB laptop, end-to-end response time fell from approximately 4,465 ms to 518 ms, effective end-to-end throughput rose from 15.7 to 131 tokens per second, and the small model's streaming decode rate held at 226-237 tokens per second with a time-to-first-token of 29-62 ms. The bottleneck is structural: three different large models (Qwen, Gemma, and GLM class) all showed the same multi-second runtime cost, and all three produced usable knowledge stores offline. On a 563-entry store built from seventeen real documents, keyword routing collapsed to 1.5% top-1 accuracy while BM25-based routing reached 92.8% (99.4% top-3), and a confidence gate raised effective top-1 to 98.0% by escalating 12.3% of queries. Exact-match fidelity of the small model ranged from 9/9 to 0/9 across envelope formats carrying identical content. A 16-case verification gate blocked all ten corrupted entries while admitting all six supported ones.
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[2026-06-25 Thu (UTC), 3 new articles found for physics.med-ph Medical Physics]
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Maximum Coverage Chase Decoder for Optical Interconnects
Alessandro Cardinale, Wenqing Song, Bin Chen, Alex Alvarado, Andreas Burg, Yifei Shen
https://arxiv.org/abs/2606.11401 https://arxiv.org/pdf/2606.11401 https://arxiv.org/html/2606.11401
arXiv:2606.11401v1 Announce Type: new
Abstract: We propose a low-complexity Chase decoder for optical interconnects that formulates test pattern selection as a generalized maximum coverage problem. For concatenated RS-BCH and oFEC codes, our decoder achieves the standard Chase decoding performance with 25% and 61.3% fewer test patterns, respectively.
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One-shot emergency psychiatric triage across 15 frontier AI chatbots
Veith Weilnhammer, Lennart Luettgau, Christopher Summerfield, Viknesh Sounderajah, Elise Wilkinson, Virginia Corno, Matthew M Nour
https://arxiv.org/abs/2604.25415 https://arxiv.org/pdf/2604.25415 https://arxiv.org/html/2604.25415
arXiv:2604.25415v1 Announce Type: new
Abstract: AI chatbots are increasingly used for health advice, but their performance in psychiatric triage remains undercharacterized. Psychiatric triage is particularly challenging because urgency must often be inferred from thoughts, behavior, and context rather than from objective findings.
We evaluated the performance of 15 frontier AI chatbots on psychiatric triage from realistic single-message disclosures using 112 clinical vignettes, each paired with 1 of 4 original benchmark triage labels: A, routine; B, assessment within 1 week; C, assessment within 24 to 48 hours; and D, emergency care now. Vignettes covered 9 psychiatric presentation clusters and 9 focal risk dimensions, organized into 28 presentation-by-risk groups. Each group contributed 4 distinct vignettes, with 1 vignette at each triage level. Each vignette was rendered as a realistic human-authored conversational query, and the AI chatbots were tasked with assigning a triage label from that disclosure.
Emergency under-triage occurred in 23 of 410 level D trials (5.6%), and all under-triaged emergencies were reassigned to level C urgency. Across target models, average accuracy ranged from 42.0% to 71.8%. Accuracy was highest for level D vignettes (94.3%) and lowest for level B vignettes (19.7%). Mean signed ordinal error was positive ( 0.47 triage levels), indicating net over-triage. Dispersion was highest around the middle triage levels. All results were confirmed relative to clinician consensus labels from 50 medical doctors.
When presented with user messages containing sufficient clinical information, frontier AI chatbots thus recognized psychiatric emergencies as requiring urgent medical assessment with near-zero error rates, yet showed marked over-triage for low and intermediate risk presentations.
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[2026-05-25 Mon (UTC), 3 new articles found for physics.ao-ph Atmospheric and Oceanic Physics]
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RTP-LLM: High-Performance Alibaba LLM Inference Engine
Boyu Tan, Jiarui Guo, Zongwei Lv, Hanbo Sun, Tong Yang, Kan Liu, Xinfei Shi, Zetao Hu, Yaxin Yu, Chi Zhang, Jianning Zhang, Xi Yang, Wei Zhang, Bo Cai, Silu Zhou, Xiyu Wang, Na He, Yinghao Yu, Wending Bao, Guiyang Huang, Yuxing Yuan, Juncheng Yin, Nan Wang, Lin Yang, Zechao Zhang, Lu Chen, Guoding Li, Tao Lan, Lin Qu
https://arxiv.org/abs/2605.29639 https://arxiv.org/pdf/2605.29639 https://arxiv.org/html/2605.29639
arXiv:2605.29639v1 Announce Type: new
Abstract: Large Language Models (LLMs) have revolutionized AI applications, but deploying them at scale presents significant challenges. We present RTP-LLM, a high-performance inference engine for industrial-scale LLM deployment, successfully deployed across Alibaba Group serving over 100 million users. RTP-LLM addresses fundamental bottlenecks through integrated design. It optimizes model loading via file-order-driven I/O and parallel I/O-communication overlapping. The Prefill-Decode Disaggregation architecture decouples compute-intensive prefill from memory-bound decode phases, combined with hierarchical multi-tiered KV cache management enabling efficient cache reuse. In addition, RTP-LLM incorporates modular speculative decoding supporting multiple algorithms, adaptive KV cache quantization, and decoupled multimodal processing, with support for multi-level parallelism.
Comprehensive evaluations across diverse model architectures (8B-235B parameters) have been conducted, where both controlled benchmarks and real production workloads are used. The results demonstrate RTP-LLM's superior performance against vLLM and SGLang: 4.7x-6.3x model loading speedup, 35-37% TTFT P95 latency reduction with 215% cache reuse improvement in production traffic scheduling, 1.12x-2.48x and 1.86x-2.52x throughput improvements in speculative decoding and multimodal inference, respectively, and 35-40% batch latency reduction with 1.9x-3.0x TTFT improvement in quantized inference. RTP-LLM's production-proven architecture and open-source availability make it a comprehensive solution for industrial LLM deployment.
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Sydney golang folks: a colleague of mine has put a ton of effort into organising the next #golang Sydney meetup. Please consider coming along to support!
It's on the 21 May 2026, 6 pm in North Sydney.
Free to attend, details on Golang-Syd's Meetup page:

[2026-07-01 Wed (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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Super-Link Fragility in Asymmetric W-Class States under Quantum Noise
Sougata Bhattacharyya, Fatih Ozaydin, Sovik Roy
https://arxiv.org/abs/2606.12307 https://arxiv.org/pdf/2606.12307 https://arxiv.org/html/2606.12307
arXiv:2606.12307v1 Announce Type: new
Abstract: The asymmetric three-qubit W-class state $|\overline{W_3^L}\rangle$ defines an isosceles entanglement-network geometry, (a) two vertex-base (VB) links form stronger bipartite connections, (b) while the base-base (BB) link is weaker. This suggests that concentrating entanglement into a super-link may be advantageous for quantum-network tasks. Here, we show that this intuition is incomplete. We analytically compare the bipartite concurrence dynamics of the symmetric |W> state and the asymmetric $|\overline{W_3^L}\rangle$ state, which differ both in entanglement-network geometry and excitation sector under standard noise models. In the absence of noise, the concurrence hierarchy is C_{VB} > C_W > C_{BB}$. Under phase damping, this hierarchy is preserved for all noise strengths and no entanglement sudden death occurs. Under amplitude damping, however, the hierarchy is reordered. The symmetric |W> state becomes the most robust, while the base-base concurrence of $|\overline{W_3^L}\rangle$ vanishes at the finite threshold of parameter $\gamma$. We term this reordering as the \textit{Super-Link Fragility Effect}. The same structural asymmetry that produces a stronger vertex-base link also makes it more vulnerable to energy dissipation when coupled with multi-excitation amplitudes. Under depolarization, the asymmetry advantage is erased, with $C_W$ and $C_{VB}$ sharing the same sudden-death threshold for some value of the parameter p, while $C_{BB}$ disappears earlier at some other value of the parameter p. The generalized amplitude damping channel continuously connects the damping-dominated regime to the pure-excitation limit, where the initial hierarchy is restored. These results show that entanglement robustness in $W$-class resources is controlled not by initial concurrence alone, but by the joint structure of entanglement-network geometry, excitation sector, and noise symmetry.
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The SMC Blind Spot: A Failure Mode Analysis of State-of-the-Art Beat Tracking
Jaehoon Ahn, Tae Gum Hwang, Moon-Ryul Jung
https://arxiv.org/abs/2605.12287 https://arxiv.org/pdf/2605.12287 https://arxiv.org/html/2605.12287
arXiv:2605.12287v1 Announce Type: new
Abstract: Over the past two decades, the task of musical beat tracking has transitioned from heuristic onset detection algorithms to highly capable deep neural networks (DNN). Although DNN-based beat tracking models achieve near-perfect performance on mainstream, percussive datasets, the SMC dataset has stubbornly yielded low F-measure scores. By testing how well state-of-the-art models detect beats on individual tracks in the SMC dataset, we identify three distinct failure modes: octave errors, continuity errors, and complete tracking failure where all metrics fall below 0.3. We reveal that state-of-the-art models tend to generate "confident-but-wrong" activations. Furthermore, we show that the standard DBN's default minimum tempo of 55 BPM prevents it from inferring the correct tempo for 21\% of SMC tracks, forcing double-tempo predictions on slow music. By exposing such fundamental oversights, we provide concrete directions for improving beat and downbeat detection, specifically emphasizing training data diversification and multi-hypothesis tempo estimation.
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Faraday waves covered by a viscoelastic sheet
Hanna Pot, Bram Christiaens, Willem van de Water
https://arxiv.org/abs/2605.18273 https://arxiv.org/pdf/2605.18273 https://arxiv.org/html/2605.18273
arXiv:2605.18273v1 Announce Type: new
Abstract: The hydroelastic response of free floating viscoelastic covers is measured using Faraday waves on the surface of a vertically oscillated fluid layer. We systematically vary the thickness $d$ of the covers to investigate its effect on the hydroelastic dispersion relation, the damping and the isotropy of the waves. Compared to bare fluids, the wave patterns are disordered. Various methods are explored to define and analyze the wavelengths, the isotropy, and shape of the waves. We find a significant difference between the measurements and the theoretical dispersion relation. Over all thicknesses $d$, this is explained by an increase in the in-plane membrane tension, which scales with $d^{3/2}$. Covering waves also has a large efect on their damping. Only for thin covers ($d = 20\: \mu{\rm m}$) the onset amplitude (and thus the damping) can be explained by dissipation in the bulk and in the boundary layer of the water beneath the cover. The same was found for bare water due to the presence of an immobile surface layer. Lastly, we find a large effect of the membrane on the ampitude of the waves, which we attribute to nonlinear wave interaction.
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[2026-05-25 Mon (UTC), 3 new articles found for physics.ao-ph Atmospheric and Oceanic Physics]
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Characteristics of a 9 MeV electron beam for total skin electron radiotherapy evaluated in comparison to a 6 MeV electron beam
Tanya Kairn (Cancer Care Services, Royal Brisbane and Women's Hospital, Herston, Qld, Australia, School of Chemistry and Physics, Queensland University of Technology, Brisbane, Qld, Australia, School of Information Technology and Electrical Engineering, University of Queensland, St Lucia, Qld, Australia), Craig M. Lancaster (Cancer Care Services, Royal Brisbane and Women's Hospital, Herston, Qld, Australia), Scott B. Crowe (Cancer Care Services, Royal Brisbane and Women's Hospital, Herston, Qld, Australia, School of Chemistry and Physics, Queensland University of Technology, Brisbane, Qld, Australia, School of Information Technology and Electrical Engineering, University of Queensland, St Lucia, Qld, Australia)
https://arxiv.org/abs/2606.21312 https://arxiv.org/pdf/2606.21312 https://arxiv.org/html/2606.21312
arXiv:2606.21312v1 Announce Type: new
Abstract: Characteristics of a 9 MeV electron beam were investigated, to evaluate potential benefits for patients with extensive mycosis fungoides lesions that are deeper than commonly treated with 6 MeV total skin electron therapy (TSET or TSE/TSEI/TSEB/TSEBT). A comprehensive commissioning measurement program was completed for TSET delivery using high-dose-rate 6 MeV and 9 MeV electron beams from a Varian TrueBeam linac. Various phantoms and dosimeters were set up 300 cm from isocenter, behind a 6 mm PMMA spoiler screen, and used for optimising beam-pair gantry angles, measuring depth-dose, lateral and horizontal profiles and B-factors, as well as performing end-to-end tests. The key clinical distinctions observed for the 9 MeV TSET beam pair compared to the 6 MeV TSET beam pair were that the 80% dose depth increased to nearly 1 cm and the practical range increased to 3.5 cm, while the maximum dose remained within 0.2 cm of the surface. Vertical and horizontal dose profiles measured with the two energies were almost indistinguishable. The 9 MeV TSET beam has been shown to achieve greater depth penetration compared to the commonly used 6 MeV TSET beam, without detrimentally affecting the dose uniformity achievable in the patient plane. TSET treatments with 9 MeV electrons may be advisable for patients with extensive lesions that are too deep for effective treatment with a 6 MeV beam.
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Hyperfine-resolved laser excitation and detection of nuclear isomer in trapped $^{229}$Th$^{3 }$ ions
Wu Wang, Ke Zhang, Ke-Mi Xu, Shan-Gui Zhou
https://arxiv.org/abs/2604.27614

Vision-Language-Action Models Meet World Models: Embodied Agentic AI for Low-Altitude Wireless Networks
Feibo Jiang, Li Dong, Lei Mao, Kezhi Wang, Cunhua Pan, Dong In Kim, Naofal Al-Dhahir
https://arxiv.org/abs/2606.11618 https://arxiv.org/pdf/2606.11618 https://arxiv.org/html/2606.11618
arXiv:2606.11618v1 Announce Type: new
Abstract: Low-Altitude Wireless Networks (LAWNs), composed of Unmanned Aerial Vehicles (UAVs) and other aerial platforms, provide integrated perception, communication, and computation services in low-altitude airspace. However, deploying large generative models in this domain faces three major challenges: 1) Limited embodied action mapping; 2) Inadequate physical environment modeling; 3) Insufficient closed-loop optimization. To address these challenges, this study proposes an Embodied Agentic UAV framework. Centered on a Vision-Language-Action (VLA) model as the execution core, the framework establishes an end-to-end embodied decision-making pipeline from multimodal environmental perception to continuous control generation. In addition, a World Model (WM) is introduced to capture the coupling between UAV actions and environmental state evolution, thereby supporting environment prediction, policy verification, and dynamic optimization. Furthermore, memory and reflection mechanisms are incorporated to form an adaptive closed-loop optimization paradigm of decision, execution, evaluation, and update, thereby enhancing the system's autonomous decision-making capability and continual evolution ability in complex dynamic environments. Experimental results validate its effectiveness in enabling robust, predictive, and sustainable autonomous control in LAWNs.
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Quantification of atmospheric carbon dioxide from the Geostationary Operational Environmental Satellite (GOES East)
Aaron Sonabend-W, Sean Campbell, John Platt, Christopher Van Arsdale, Anna M. Michalak
https://arxiv.org/abs/2605.23991 https://arxiv.org/pdf/2605.23991 https://arxiv.org/html/2605.23991
arXiv:2605.23991v1 Announce Type: new
Abstract: There is a growing urgency to track greenhouse gasses with the resolution, precision and accuracy needed to support independent verification of $CO_2$ fluxes at local to global scales. The current generation of space-based sensors, however, only provides sparse observations in space and time. This challenge has fueled interest in the potential use of data from existing missions originally developed for other applications for inferring global greenhouse gas variability. The Advanced Baseline Imager (ABI) onboard the Geostationary Operational Environmental Satellite (GOES-East), operational since 2017, provides full coverage of much of the western hemisphere at 10-minute intervals from geostationary orbit at 16 wavelengths at an approximately 2$km^2$ spatial resolution. Here, we leverage this high spatial coverage and temporal revisit to develop a single-pixel, physics-guided neural network to estimate dry-air column $CO_2$ mole fraction ($XCO_2$). The model employs a time series of GOES-East's 16 spectral bands, ECMWF ERA5 lower tropospheric meteorology, MODIS surface reflectance, solar and satellite viewing geometry, and day of year. Training used collocated GOES-East and OCO-2/OCO-3 observations. We also present case studies illustrating the use of the model to observe $XCO_2$ enhancements over urban areas and drawdown over agricultural regions. Overall, while the precision of GOES-East derived $XCO_2$ can never rival that of dedicated instruments, the unprecedented combination of contiguous geographic coverage, 10-minute temporal frequency, and multi-year record offers the potential to observe aspects of atmospheric $CO_2$ variability currently unseen from space.
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Spatio-Temporal Signatures of Intermittency in Helically Rotating Turbulence through Topological Data Analysis
Snigdhashree Mallick (International Institute of Information Technology, Bangalore, India), Yashwanth Ramamurthi (International Institute of Information Technology, Bangalore, India), Shiva Kumar Malapaka (International Institute of Information Technology, Bangalore, India), Amit Chattopadhyay (International Institute of Information Technology, Bangalore, India)
https://arxiv.org/abs/2605.17560 https://arxiv.org/pdf/2605.17560 https://arxiv.org/html/2605.17560
arXiv:2605.17560v1 Announce Type: new
Abstract: A central challenge in hydrodynamic turbulence is identifying precisely when, and at which length scales, strong turbulent fluctuations (STFs) emerge and develop into intermittent events, which are often obscured by conventional statistical diagnostics. We address this problem by applying a Topological Data Analysis (TDA) framework to reveal the spatiotemporal signatures of intermittency in low-resolution ($128^3$) helically rotating turbulent flows. Vorticity magnitude and length-scale (eddy size) fields are used as scalar observables for TDA: vorticity characterizes rotational dynamics that generate multiscale flow structures, while length-scale fields encode the scales at which intermittent activity arises. Their evolving topology is quantified using persistence diagrams and Wasserstein-distance metrics. Compared with traditional statistical approaches, this framework is more sensitive to localized and short-lived flow variations, enabling clearer detection of intermittent behavior. Pronounced variations in Wasserstein-distance heatmaps provide direct signatures of STFs across space and time. Together, these results demonstrate that TDA offers an effective complementary tool for detecting STFs that lead to intermittency within turbulent regime.
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Isotope shifts and hyperfine splitting of the ${}^{1}S_{0}\rightarrow{}^{3}P_{1}$ transition in zinc
Felix Waldherr, Lukas M\"oller, Simon Stellmer
https://arxiv.org/abs/2605.29574

Segment-Wise Soft Robotics Inspired Flexible Antenna Arrays: Design and Optimization
Shuaishuai Han, Konstantinos Ntougias, Elio Faddoul, Ioannis Krikidis
https://arxiv.org/abs/2606.11771 https://arxiv.org/pdf/2606.11771 https://arxiv.org/html/2606.11771
arXiv:2606.11771v1 Announce Type: new
Abstract: In this paper, we propose a segment-wise soft robotic antenna (SRA) system, where each soft robotic arm referred to as a tentacle, comprises multiple independently controllable segments with bending, elongation-retraction, and sweeping motions. By adjusting segment motion parameters, the positions of surface-mounted antennas are reconfigured, distinguishing it from conventional reconfigurable antenna (RA) systems. Based on this model, we propose two antenna deployment schemes: the segmented end-antenna configuration (SEAC), where fixed antennas are mounted at the segment ends and reconfigured via segment motions; and the hybrid end-and-intermediate antenna configuration (HEIAC), where RAs are further integrated as intra-segment antennas. In HEIAC, soft-robot segment deformation provides large-scale spatial reconfiguration, while RAs enable fine-grained adjustment. For SEAC, we formulate a sum-rate maximization problem accounting for inter-segment connectivity and the nonlinear mapping from segment deformation parameters to antenna coordinates, and develop a penalty dual decomposition-projected gradient ascent (PDD-PGA) algorithm. For HEIAC, we jointly optimize segment deformation, intra-segment antenna positions, and antenna activation using a block coordinate descent (BCD)-PDD-PGA algorithm with greedy backward antenna selection. Simulation results demonstrate that the proposed schemes substantially outperform fixed-position antenna arrays and conventional RA baselines. In particular, SEAC and HEIAC achieve 37.9% and 32.1% sum-rate gains over conventional 3D reconfigurable arrays, respectively, while SEAC provides up to a 49.3% gain in compact array deployments.
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[2026-05-27 Wed (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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[2026-05-25 Mon (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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Replaced article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- Continuous operation of a coherent 3,000-qubit system
Neng-Chun Chiu, et al.

[2026-04-23 Thu (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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Electric field dependent g factors of RaOCH$_3$ molecule
Alexander Petrov
https://arxiv.org/abs/2604.19802 https://arxiv.org/pdf/2604.19802

[2026-04-22 Wed (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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[2026-04-21 Tue (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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[2026-04-15 Wed (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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[2026-05-15 Fri (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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Rovibrational structure and electric dipole moments of the AcOCH$_3$ ion
Anna Zakharova
https://arxiv.org/abs/2605.15121 https://arxiv.org/pdf/2605.15121

[2026-04-13 Mon (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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[2026-05-14 Thu (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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[2026-06-11 Thu (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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[2026-05-13 Wed (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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Observation of Magnetically-Induced atomic transitions of the Cs 6S$_{1/2} \rightarrow 7$P$_{3/2}$ line at 456 nm
Armen Sargsyan, Arevik Amiryan, Emmanuel Klinger, David Sarkisyan
https://arxiv.org/abs/2605.12020

[2026-04-10 Fri (UTC), 3 new articles found for physics.atom-ph Atomic Physics]
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