Your AI research companion

1. cs.CLDS@GT ARC at CheckThat! 2026: A Verdict-Anchored Pipeline for Generating Fact-Checking ArticlesHoang Thanh Thanh Truong, Shuyu Tian

   The team developed a process for turning a claim, its existing fact-check verdict, and collected sources into a complete fact-checking article. In a shared evaluation, the system placed third out of nine teams and scored above the baseline, showing how …

2. cs.CVVAR-Q: Tuning-free KV Cache Quantization for Visual Autoregressive Image and Video GenerationBoxun Xu, Jiaji Lu, Yuxuan Yin, Zihu Wang, Ziyue Liu, Yu Wang et al.

   The authors built a system to identify the rhetorical structure of discussions during legislative hearings. Their approach parses over half of the bill discussions in their dataset, and a relatively simple classifier performed best among the tested systems, offering a …

3. cs.LGA Sharp Dynamic Haussler LemmaShihao Shao, Dacheng Tao

   This paper proves a general rule for how many simple predictors are needed to approximate a broad class of prediction rules over a sequence of inputs. The bound is sharp, works across several common measures of prediction error, and resolves …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints explore robots learning from simulation, AI-assisted mathematical discovery, and why accuracy depends on what—and where—we choose to measure.

6 papers put into perspective

1. The coastline looks different outside the training set
2. When more accurate arithmetic breaks a model
3. AI text spreads unevenly across the web
4. Cleaner movement data can change the movement being measured

1. astro-ph.GADynamics of self-gravitating halos with decaying dark matterAnna Bencke, Marc Kamionkowski, Annika H. G. Peter, Juniper Morales

   The authors simulated dark matter halos whose particles decay and give a small kick to their lighter offspring, adding heat to the halo. They studied how this changes halo shape and density, including when the halo starts out uneven, and …

2. astro-ph.GACosmoVerse Data Challenge: How Tip of the Red Giant Branch Analysis Choices Shape the Inferred Hubble ConstantSiyang Li, Eleonora Di Valentino, Jackson Levi Said, Kayla Owens, Yukei Murakam…

   Researchers invited participants to estimate the Universe’s expansion rate from shared stellar data, while allowing them to make their own choices about which stars and galaxies to use. The resulting estimates varied substantially, showing how analysis and sample choices can …

3. astro-ph.GAHow sky subtraction scales affect Intracluster light measurementsGiulia Golini, Sarah Brough, Mireia Montes, Aaron Watkins

   The authors examined how removing background light from astronomical images can also erase some of the faint, spread-out light around galaxy clusters. They found that the choice of background scale affects measurements in several surveys, while a larger scale planned …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

This week’s preprints uncover an overlooked outer Solar System object, revisit a stubborn chemical puzzle and use light from stellar remnants to reconstruct what cannot be seen directly.

6 papers put into perspective

1. A bright world in a neglected patch of sky
2. A chemical discrepancy becomes a temperature problem
3. Measuring a neutron star across the spectrum
4. A supernova with a delayed return

1. quant-phZero noise extrapolation of transport coefficientsHansveer Singh, Pieter Claeys, Sarang Gopalakrishnan, Anushya Chandran

   The authors study how to use noisy quantum-device measurements to estimate spin transport in an ideal, noise-free system. They show that common extrapolation methods can miss the answer because noise may change transport in a way that is not smoothly …

2. quant-phFermionic Porter-Thomas statistics and their emergence in random matchgate circuitsGuglielmo Lami

   The authors derive how measurement probabilities are distributed for random states of free fermions and study how those distributions arise in circuits built from simple fermionic gates. They show that these circuits spread probability across many outcomes less strongly than …

3. quant-phNoise-Induced Topology in Chiral Quantum WalksAlexandre Chaduteau, Derek K. K. Lee, Frank Schindler, Abhinav Prem

   The authors find that random energy fluctuations, usually expected to erase interference, can instead make uneven spreading in a chiral quantum walk robust. The fluctuations can even reverse the direction of the spreading, and the predicted effects may be testable …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints explore how quantum behavior is lost, preserved and engineered—and how a seemingly reversible change can undermine quantum communication.

6 papers put into perspective

1. Watching an electron lose its quantum character
2. For silicon qubits, quieter can also mean harder to drive
3. A small quantum processor hosts a fractional quantum state
4. Repeated measurement slows a spin system’s forgetting

1. physics.opticsA closed-form design rule for photonic hopfions of arbitrary orderAli Nadarloo, Mohammad Javad Hajiahmadi, Mohammad Soleimani

   The authors give a direct recipe for designing light fields whose polarization patterns form linked loops, without relying on trial and error or numerical optimization. Their rule lets designers choose the linking order in advance and is demonstrated in simulations …

2. cond-mat.mes-hallBypass Transition via the Non-Hermitian Skin EffectKonghao Sun, Haiping Hu

   The authors show that a one-way amplification effect in a non-Hermitian lattice can combine with nonlinear feedback to set motion going, even when the system is stable at rest. They develop a way to predict how strong a disturbance or …

3. cond-mat.mes-hallClassification and Signatures of Dissipative Quantum Hall-Superconductor JunctionsEvgenii Zheltonozhskii, Barak A. Katzir, Yuval Oreg, Erez Berg, Netanel H. Lind…

   The authors explain why some fractional quantum Hall systems next to a superconductor show small electrical conductance that barely changes with temperature, while others show conductance that rises as they cool. Their model links these differences to energy loss into …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

This week’s selected preprints use interference, ultrafast light, electron correlations and living swimmers to reveal how microscopic behavior becomes measurable collective order.

6 papers put into perspective

1. Distant clocks become a probe of gravity
2. A superconducting state reveals its internal sign pattern
3. Light opens a topological gap in graphene
4. Clockwise swimmers build a counterclockwise fluid

1. hep-phFlavour Chains at the TeV EdgeAdmir Greljo, Xavier Ponce Díaz, Lia Schöneweiß

   The paper studies whether chains of new heavy particles could explain why some fundamental particles are much heavier than others, while also helping explain the Higgs boson’s mass. It finds that precision measurements of the Z and W bosons can …

2. hep-phTop Spin and CP from Equivariant TransformersHenning Bahl, Marco Menen, Antoine Petitjean, Tilman Plehn

   The authors use a machine-learning model designed to respect the laws of relativity to study particle spins and matter–antimatter differences. They show that it can better identify spin information in hadronic top quarks and can learn useful CP-sensitive measurements in …

3. hep-phPhoton-Counting Readout via Electro-Optic Microwave-to-Optical Transduction for Axion HaloscopesJing Wu, Raphael Cervantes, Doga Murat Kurkcuoglu, Zheshen Zhang, Silvia Zorzet…

   The authors propose detecting axion-produced microwave photons by converting them into optical photons and counting them. Their calculations suggest this could scan for axions faster than a standard measurement approach, especially with improved device components.

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints use neutrinos, nuclear decay, colliding nuclei, numerical QCD and gravitational waves to test how well our descriptions of nature survive demanding measurements.

6 papers put into perspective

1. A clearer signal from reactor neutrinos
2. Small nuclear collisions show a collective pattern
3. An exotic nucleus tests how particles decay together
4. Computing the thermodynamics of dense quark matter

1. bioRxiv: NeuroscienceWhy probe registration is crucial for infant fNIRS and HD-DOT? An evaluation across 49 newbornsG. A. Perkins, A. Flo, E. Visibelli, E. N. Dognabas, N. Reoyo-Serrano, S. Benav…

   This study measured how much newborn imaging results can be affected when the light-sensor cap is not aligned precisely with each infant’s anatomy. In 49 newborns, misalignment was common enough to reduce the spatial accuracy of reconstructed brain images, supporting …

2. q-bio.NCLearning Time-Varying Connectomes for Stable Behavior Across DevelopmentChristof Fehrman, Jacob J. Morra, Eva A. Naumann

   The authors tested whether a compact program could generate changing neural connections that let simulated visuomotor systems keep behaving effectively as they develop. Training across several developmental stages worked better than training at only one stage, and often just three …

3. q-bio.NCSynchronized Hearts, Desynchronized Brains: A Nonlinear Dynamics Perspective for Function and FailureIrene Pellini, Simon Bauer, Seba Contreras, Ruben Fernández Busnadiego, Anushka…

   This review compares how electrical activity is coordinated in the heart and brain: the heart needs waves of activity, while the brain generally relies on less synchronized activity. It explains how shifts toward too little coordination in the heart or …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

A simulated fly, a stress test for seizure prediction and studies of developing brains and inherited risk reveal why biological explanations depend on what surrounds the system being studied.

5 papers put into perspective

1. A fly connectome takes its first steps
2. The seizure predictor depends on the test
3. Seeing helps blood vessels mature
4. Birth changes the developmental clock

1. bioRxiv: Cell BiologyCalcium and actomyosin pulses drive tricellular zipping to remodel epithelial cell-cell junctions and facilit…B. Adhikary, X. O. Zhao, A. Shahi, A. G. Laboy-Figueroa, M. P. Purvis, K. K. Tj…

   The authors describe a process in which a junction where three epithelial cells meet shifts and zips into a new boundary between two cells, helping tissues pack cells together. Live imaging and modeling suggest that calcium signals trigger localized actomyosin …

2. q-bio.BMDiscrete Backbone Elasticity and Curvature-Dependent Torsion Statistics in ProteinsYiquan Wang, Mingyu Bian, Jiayuan Ma

   This study tests how much protein backbone shape can be predicted from the local flexibility and bending of its chain. A model based on these local properties improved predictions of protein turns and helices, while also showing where local shape …

3. q-bio.GNBIOTRAM: Biochemistry-informed Transformer for Relative Abundance via MetabarcodingEmma Boehly, Scott C. Lowe, Ken A. Thompson, Anthony Fuller, Will Armstrong, Iu…

   DNA read counts from mixed insect samples do not directly show how many specimens of each species were present, because species differ in how much DNA they contribute and how readily it is amplified. BIOTRAM accounts for these differences and …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

This week’s preprints trace how nerves, immune cells, fungi and membrane proteins shape disease—and how a diagnosis can remain absent even when the laboratory evidence is present.

6 papers put into perspective

1. A nerve reflex opens the lung’s vascular barrier
2. An adjustable doorway for folded proteins
3. Engineered immune cells need reinforcements
4. A hemorrhagic fever virus depends on host entry receptors

1. physics.ao-phShifts in Rossby wave regimes via the change of group velocity with zonal jetsZhixiang Li, Jianhua Lu, Yimin Liu, Tim Woollings

   Using decades of weather records, the authors examine how changing westerly winds affect the movement of large atmospheric waves. They find that changes in wave travel speed can shift wave patterns and may help explain changes in extreme weather.

2. physics.ao-phDistinguishing Initial-Condition and Model Error Using Machine-Learning Weather ModelsP. Trent Vonich, Gregory J. Hakim

   The study tests ways to adjust the starting conditions and model weights of two machine-learning weather systems. Joint adjustment makes their improvements more consistent with each other, though it does not always produce the best forecast from either system.

3. astro-ph.EPOrientation of the spin axes of large Kuiper belt bodies as an indicator of the mechanism of their originA. M. Kazantsev

   The paper examines the spin directions of large Kuiper Belt objects that have moons, using the moons’ orbits to estimate the bodies’ equators. The authors report that several distant and resonant objects have spin axes close to their paths around …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints examine what forest treatments protect, how parasites silence collective defenses, and what clocks, comet dust and weather models can reveal about a changing world.

5 papers put into perspective

1. Saving trees without restoring a fire-adapted forest
2. A parasitoid cuts the alarm line
3. Interstellar dust with little sign of heating
4. Clocks follow the changing pull of the tides

1. stat.MEHigh-dimensional Four-Level Structured Functional Principal Component Analysis for Unbalanced Level Data with…Verena Werkmann, Alok S. Shah, Brian D. Stemper, Jaroslaw Harezlak

   The paper adapts a method for summarizing patterns in collections of curves to data organized into four nested group levels, even when group sizes differ greatly. A memory-saving implementation makes it practical to analyze large datasets on ordinary computers, and …

2. stat.MEBayesian Superpopulation Models for Population-Based Diabetes Surveillance Using Multi-Site Electronic Health…Rebecca Anthopolos, Bo Cai, Lorna E. Thorpe, Hui Xie, Xiaochun Li, Sarah Conder…

   The study develops statistical models to estimate childhood diabetes prevalence from health records that may not represent the whole population. In tests, estimates based on population models were higher than the recorded sample rates, and an analysis-of-variance-based model performed best …

3. stat.MEA covariance density for a point process and a random fieldMarkus Frederik Palmelund, Ib Thorsgaard Jensen, Rasmus Waagepetersen

   The authors develop a way to measure how values in a spatial field vary alongside the locations of points, even when the field was measured on a separate grid. Their method avoids filling in missing field values at point locations …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints revisit black-hole thermodynamics, geometric efficiency, numerical algorithms and the limits of what simple models can represent.

6 papers put into perspective

1. An extremal black hole, reached through vacuum
2. The geometry of enclosing space
3. A speed limit for finding roots
4. A community can fail despite reassuring interaction signs

1. cs.SELIBRA: Programmatic Induction of Executable Tool LibrariesZekai Li, Zhenke Liu, Yonghao Li, Junhan Liu, Xulong Xiao, Jiapeng Zhang

   The paper presents a way to organize a large collection of digital tools by testing which tools can work together and which ones need to come first. This helps AI agents retrieve complete workflows rather than just a tool that …

2. cs.SEReq-Space: A User Study of Interactive Visualisations for Requirements ReviewRisha Parveen, Navneet Arora, Zheying Zhang, Kalle Mäkelä, Pekka Abrahamsson

   The researchers tested whether interactive diagrams help people review software requirements and judge how a proposed change could affect them. Participants found additional evidence with the tool, though the study design cannot establish that the tool itself caused the improvement.

3. cs.SELLM-based NPCs in Video Games: A Systematic Mapping StudyDilan Mian, Jeremy Bradbury, Yann-Gaël Guéhéneuc, Fabio Petrillo, Cristiano Pol…

   This study reviews research on video-game characters powered by large language models, examining what systems include and how they perform. It maps common design choices, response times, and obstacles to commercial use, giving developers a clearer picture of the field.

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

Among this week’s computing preprints, progress comes from reorganizing calculations, fitting speech recognition onto a microcontroller, and testing whether elaborate systems actually earn their complexity.

6 papers put into perspective

1. A famous coloring problem gets a faster solution
2. Counting a disordered system up to a critical boundary
3. Speech recognition without a neural accelerator
4. A newer GPU is not automatically a better purchase

1. econ.EMOn the Theory of Multidimensional Stationary Random Processes (1941): Translation and CommentaryBulat Gafarov, Madina Karamysheva

   This edition translates and explains a 1941 paper on how multidimensional random processes can be broken into distinct parts and represented using past innovations. It highlights the work’s historical importance and makes the original result accessible to English readers.

2. econ.GNEconomic Policy Uncertainty Index for Poland: Data, Construction, and ValidationAlina M. Landowska, Robert A. Kłopotek, He Zhang

   The authors create a monthly measure of economic policy uncertainty in Poland using newspaper articles from 2000 to 2026. The index rises around major events and is only moderately aligned with US and global measures, suggesting it largely reflects uncertainty …

3. econ.EMDebiased Conditional Independence Tests for Causal EffectsSusan Athey, Maria Nareklishvili, Jann Spiess

   The paper develops tests for whether treatment affects outcomes when people may be selected into treatment and the outcomes are numerous or complex. In simulations, the proposed tests detect effects more effectively than a common comparison method in several challenging …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints examine maternity leave, agriculture’s origins, policy evaluation, high-speed trading and bank capital—and show why the route from data to conclusions matters.

5 papers put into perspective

1. Paid maternity leave and the limits of a policy cutoff
2. Why farming began—and why it spread
3. A feared statistical problem meets a large empirical check
4. What trading speed buys in China