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Physics

arXiv preprints from January 1, 2026 through September 20, 2026 — 17:59:57 EST

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Posted in astro-ph.EP · 2026-08-28 · Reza Ashtari, Stephen P. Schmidt, Guangwei Fu, Avinash Verma, David K. Sing, Kevin B. Stevenson, Jayesh Goyal, Katherine A. Bennett, Joshua D. Lothringer, Jacob Lustig-Yaeger, Sagnick Mukherjee, Carlos Gascón, Natalie H. Allen, Patrick McCreery, Le-Chris Wang, Mei Ting Mak, Kristin S. Sotzen, Lakeisha M. Ramos Rosado, N. J. Mayne

A Clearer View of HAT-P-1 b: JWST NIRSpec G395H Reveals Water, Carbon Dioxide, and Possibly Hydrogen Sulfide

As part of JWST's Exoplanet Grand Tour Survey, we use panchromatic transmission spectroscopy to connect HAT-P-1 b's previously studied optical and near-infrared atmosphere to the longer-wavelength molecular bands accessible with JWST. We present JWST NIRSpec G395H transmission spectroscopy of the hot Jupiter HAT-P-1 b over...

💬 0 commentsarXiv:2608.28538v1PDF
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Posted in physics.flu-dyn · 2026-08-28 · Richard Mcnair, Kerstin Schirrmann, Anne Juel, Igor L. Chernyavsky

Compaction in a deformable porous cylinder with elastic boundaries

Perfusion of soft materials such as biological tissue or hydrogels is essential for the functioning of organ and laboratory systems such as chromatographic columns and bioreactors. Inspired by these applications, we model fluid-driven compaction in a long, thin cylindrical porous medium bounded by an impermeable elastic membrane and...

💬 0 commentsarXiv:2608.28537v1PDF
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Posted in astro-ph.HE · 2026-08-28 · Nathaniel Alden, Marissa Boucher, Cosmin Deaconu, Abigail Vieregg, Philipp Windischhofer

Exploring the sensitivity of in-ice radio detectors to cosmic ray mass composition

In-ice radio detectors have been developed primarily for the detection of high-energy neutrinos via the Askaryan effect, but have recently been shown to also be sensitive to cosmic ray air showers impacting the ice sheet. Using CORSIKA 8 to simulate impacting air showers, we find that the lateral width of the in-ice cascade is...

💬 0 commentsarXiv:2608.28536v1PDF
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Posted in cond-mat.str-el · 2026-08-28 · Akshay Pal, Andrew Lucas, Umang Mehta

Interaction corrections to topological density three-point functions in two-dimensional Fermi liquids: a coadjoint orbit perspective

Density three-point correlations are known to probe the topology of the Fermi sea in two-dimensional noninteracting systems. Here, we study how these correlations are modified by interactions using the coadjoint-orbit effective field theory. A key advantage of the coadjoint-orbit formulation is that it provides a systematic way to...

💬 0 commentsarXiv:2608.28588v1PDF
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Posted in astro-ph.HE · 2026-08-28 · Marcus DuPont

A Similarity Theorem and Its Breakdown in Atomic Black Hole Accretion

Atomic gas in a point-mass potential possesses an exact similarity that survives time dependence, two-body atomic microphysics, and a specified class of radiation and feedback laws. At fixed ambient temperature and composition, $M_\bullet\mapstoλM_\bullet$ and $n_\infty\mapstoλ^{-1}n_\infty$ enlarge radii and times by $λ$ while...

💬 0 commentsarXiv:2608.28587v1PDF
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Posted in cond-mat.mtrl-sci · 2026-08-28 · Hai-Lan Luo, Weitang Li, Luca Moreschini, Jonathan Denlinger, Zhigang Shuai, Claudia Ojeda-Aristizabal, Alessandra Lanzara

Layer-Controlled Intermolecular Coupling and Many-Body Effects in C$_{60}$ Films

Crystalline C$_{60}$ is a molecular solid whose electronic properties emerge from the interplay of intermolecular hopping, electron correlations, and electron-vibration coupling. Unlike moir$\rm\acute{e}$ van der Waals heterostructures, where interaction strength is commonly tuned by twist angle, molecular materials offer a...

💬 0 commentsarXiv:2608.28583v1PDF
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Posted in hep-lat · 2026-08-28 · Anna Hasenfratz, Ethan T. Neil, Letizia Parato, Noah Schwartz

Renormalization-guided cascade upscaling for lattice field generation

We introduce a renormalization-group (RG) guided machine-learning algorithm for lattice field generation based on approximate inversion of an RG transformation. A ``perfect blocking'' construction supplies equilibrated long-distance modes, while a conditional normalizing flow reconstructs short-distance details and brief...

💬 0 commentsarXiv:2608.28581v1PDF
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Posted in hep-lat · 2026-08-28 · Anna Hasenfratz, Ethan T. Neil, Letizia Parato, Noah Schwartz

Renormalization-guided inverse blocking for lattice field generation: construction and validation

We propose an algorithm for generating lattice field configurations based on the approximate inversion of a renormalization-group blocking transformation. We optimize the blocking transformation using a ``perfect blocking'' condition so that the blocked lattice distribution is well approximated by a simple coarse action. The blocking...

💬 0 commentsarXiv:2608.28580v1PDF
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Posted in quant-ph · 2026-08-28 · Ding Gu, Zhanpeng Fu, Yu-Min Hu, Zhong Wang

How Long-Range Tails Reshape Non-Hermitian Spectra

Exponentially decaying long-range hoppings are ubiquitous in realistic tight-binding models and are often truncated to obtain a finite-range description. We show that this approximation can fail dramatically in non-Hermitian systems under open boundary conditions: an infinitesimal long-range hopping can nonperturbatively reconstruct...

💬 0 commentsarXiv:2608.28577v1PDF
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Posted in cond-mat.mes-hall · 2026-08-28 · Bosai Lyu, Valeria Vento, Ludivine Fausten, Daniel Suarez-Forero, Klevis Domi, Kenji Watanabe, Takashi Taniguchi, Alberto Morpurgo, Iaroslav Gaponenko, Patrycja Paruch, Ajit Srivastava

Super-resolution Control of Two-dimensional Quantum Emitters

Localized interlayer excitons in semiconducting transition-metal dichalcogenide heterobilayers are quantum emitters with a static electric dipole moment, making them excellent nanoscale charge sensors to probe correlated quantum phases in a proximal layer. These emitters are electrically tunable and inherit spin-valley selection...

💬 0 commentsarXiv:2608.28574v1PDF
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Posted in quant-ph · 2026-08-28 · Jiahui Wu, Chao Zhang, Zipeng Wu, Shilin Huang

Learning to Decode Concatenated Quantum Codes with Hierarchical Message Passing

We introduce a neural message-passing framework for decoding general concatenated stabilizer codes. Soft beliefs propagate bidirectionally across concatenation levels, and lightweight neural networks learn only to aggregate incoming messages. For the concatenated $[[15,7,3]]$ quantum Hamming code, the resulting decoder achieves...

💬 0 commentsarXiv:2608.28571v1PDF
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Posted in cond-mat.supr-con · 2026-08-28 · Matthias Liepe Michelle M. Kelley, Sean Deyo, Nathan Sitaraman, Danilo B. Liarte, Tomás Arias, James P. Sethna, Thomas Oseroff

A Three-Fluid Model of Dissipation at Surfaces in Superconducting Radiofrequency Cavities

Experiments on superconducting cavities have found that under large RF fields the quality factor can improve with increasing field amplitude, a so-called ``anti-Q slope.'' We numerically solve the Bogoliubov-de Gennes equations at a superconducting surface in a parallel magnetic field, finding at large fields there are surface...

💬 0 commentsarXiv:2608.28565v1PDF
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Posted in cond-mat.stat-mech · 2026-08-28 · Urban Duh, Friedrich Hübner, Marko Žnidarič

Solvable relaxation in discrete unitary systems: Ruelle-Pollicott resonances and CMV matrices

Leading eigenvalues of the truncated propagator, known as Ruelle-Pollicott (RP) resonances, are an elegant way of addressing the dynamics of unitary many-body systems. We study unitary propagators in their canonical form, known in the mathematical literature as the CMV matrices, and obtain a number of exact results for RP resonances...

💬 0 commentsarXiv:2608.28575v1PDF
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Posted in quant-ph · 2026-08-28 · Carli Bruinsma, Pietro M. Posta, Joppe Stokvis, Dmitry Grinko, Maris Ozols

Quantum Fourier transform toolbox

Quantum Fourier transforms (QFTs) are essential primitives in quantum algorithms. While abelian groups admit efficient QFT circuits, with circuit size polynomial in the logarithm of the group order, efficient constructions are known for relatively few non-abelian families. We develop two new approaches to QFT circuit construction,...

💬 0 commentsarXiv:2608.28573v1PDF
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Posted in quant-ph · 2026-08-28 · Carli Bruinsma, Dmitry Grinko, Maris Ozols

Quantum Fourier transform for the symmetric group

Quantum Fourier transforms (QFT) for general groups were recognized to be fundamental already early in the field. A canonical example of non-abelian QFT for the symmetric group was outlined by Beals (1997). Later, a more detailed analysis of this algorithm was carried out by Kawano and Sekigawa (2016). In this paper, we revisit that...

💬 0 commentsarXiv:2608.28569v1PDF
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Posted in quant-ph · 2026-08-28 · Anna Jenčová, Lauritz van Luijk

Sufficient positive maps between von Neumann algebras: Rényi divergences

We prove recovery theorems for $α$-$z$ Rényi divergences under normal unital positive maps between von Neumann algebras. Previous results in this setting required 2-positivity, while recent finite dimensional work showed that this assumption can be relaxed to mere positivity. Our proof uses sufficiency for JW*-subalgebras and...

💬 0 commentsarXiv:2608.28510v1PDF
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Posted in cond-mat.soft · 2026-08-28 · Mikhail Y. Laktionov, Frans A. M. Leermakers, Ralf P. Richter, Leonid I. Klushin, Oleg V. Borisov

How a polymer filling enhances the rate and selectivity of colloid permeation across mesopores

Polymer-functionalised mesopores are an emerging technology for colloid separation, sensing and delivery. Their potential is strikingly illustrated in living cells, where nuclear pore complexes (NPCs) control biocolloid transport between the nucleus and the cytosol. Even colloids much smaller than the biopolymer-filled NPC channel are...

💬 0 commentsarXiv:2608.27995v1PDF
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Posted in physics.optics · 2026-08-28 · Wanting Hou, Jilun Zhao, Zhiyuan Ye, Hong-Chao Liu, Hai-Bo Wang, Jun Xiong, Kaige Wang

Correlation Swapping: a correlator for independent thermal light sources

Optical intensity correlation is a fundamental property of light and an essential resource for numerous optical applications. In this work, we introduce the concept of classical correlation swapping, a classical analogue of quantum entanglement swapping, to generate all-purpose spatial correlations between two independent thermal...

💬 0 commentsarXiv:2608.28454v1PDF
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Posted in quant-ph · 2026-08-28 · Štěpán Šmíd, Richard Meister, Mario Berta, Roberto Bondesan

Constant-time equilibration of observables under rapid Lindbladian dynamics

Markovian open-system dynamics have widespread applications throughout quantum information science, including algorithmic state preparation. Their convergence is commonly quantified using the worst case global trace distance between the evolving and stationary states. However, this criterion can be unnecessarily stringent when only...

💬 0 commentsarXiv:2608.28451v1PDF
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Posted in hep-ex · 2026-08-28 · Kevin Greif

A High- and Variable-Dimensional Measurement of the $Z$+jets Differential Cross Section with the ATLAS Experiment and Artificial Intelligence

Proton-proton collisions at the Large Hadron Collider (LHC) offer the opportunity to observe the interactions of fundamental particles at very high energy scales. The high collision rate and large number of final state particles produced per collision imply that the datasets produced by detectors such as the ATLAS experiment are large...

💬 0 commentsarXiv:2608.28449v1PDF
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Posted in astro-ph.HE · 2026-08-28 · S. V. Troitsky

Reassessing the contribution of long-GRB high-energy afterglows to the isotropic gamma-ray background after GRB 221009A

Very-high-energy photons from gamma-ray bursts (GRBs) are absorbed by the extragalactic background light and partly reprocessed into the GeV band. We update previous estimates of the long-GRB contribution to the Fermi-LAT isotropic gamma-ray background (IGRB), using a time-integrated high-energy afterglow template of GRB 221009A,...

💬 0 commentsarXiv:2608.28448v1PDF
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Posted in quant-ph · 2026-08-28 · Carlos Ramon-Escandell, Arnau Riera, Marcin Płodzień

From quantum reservoirs to quantum extreme learning machines through a nearest-neighbor spin chain with tunable quantum memory

Quantum Reservoir Computing (QRC) processes temporal data by retaining a memory of past inputs in the recurrent state of a quantum system, whereas a Quantum Extreme-Learning Machine (QELM) discards that memory, resetting the system at every step so that only the most recent input shapes the response. The two are usually treated as...

💬 0 commentsarXiv:2608.28440v1PDF
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Posted in astro-ph.GA · 2026-08-28 · Gracie McGill, Annette M. N. Ferguson, Dougal Mackey, Chiara Crociati, Jess M. Howell, Avon P. Huxor, Mike J. Irwin, Alan W. McConnachie, Alessandro Savino, Nial R. Tanvir, Daniel R. Weisz

Characterising the Globular Cluster Systems of Three Local Group Dwarf Galaxies: NGC6822, NGC147 and NGC185

We present deep HST photometry for 26 globular clusters (GCs) residing in three Local Group dwarf galaxies: the isolated dwarf irregular (dIrr) galaxy, NGC6822, and the M31 dwarf elliptical (dE) satellites, NGC147 and NGC185. From their colour-magnitude diagrams (CMDs), we quantify their red giant branch (RGB) and horizontal branch...

💬 0 commentsarXiv:2608.28434v1PDF
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Posted in astro-ph.CO · 2026-08-28 · Edvard Mörtsell, Joel Johansson, Ariel Goobar, Alice Townsend, Hannah C. Turner, Suhail Dhawan, Cameron Lemon, Peter Nugent, Thomas E. Collett, Stephen Thorp, Jacob Osman Hjortlund, Jakob Nordin, Lin Yan, Graham P. Smith, Christoffer Fremling

Follow-up of SN 2025wny V: Lens Modelling and Cosmography of a Strongly Lensed Superluminous Supernova at $z = 2.015$ using Space Data

We present a lensing and cosmographic analysis of the strongly lensed Type I superluminous supernova SN 2025wny at redshift $z=2.015$, multiply imaged by two foreground galaxies at $z=0.376$. Using imaging obtained with the Hubble Space Telescope and the James Webb Space Telescope, we model the lens system with two elliptical...

💬 0 commentsarXiv:2608.28430v1PDF