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Physics Preprint PDF DOI

A perturbative Liouville prescription for the celestial three-gluon amplitude

Grzegorz Biskowski, Franco Ferrari, Marcin R. Piatek, Artur R. Pietrykowski · 2026

We study the celestial three-gluon amplitude in a dilaton background through the Mellin-Liouville formulation proposed by Stieberger, Taylor and Zhu (STZ). The original map contains an ambiguity in th…

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Physics Preprint PDF DOI

Numerical inverse scattering transform for the coupled modified Korteweg-de Vries equation

Wen-Xin Zhang, Yong Chen · 2026

This paper develops the numerical inverse scattering transform (NIST) framework for the coupled modified Korteweg-de Vries (mKdV) equation based on its associated Riemann-Hilbert problem. The coupled …

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Physics Preprint PDF DOI

Fast radio burst dispersion is an unbiased tracer of matter on large scales

Shion Andrew, Haochen Wang, Kiyoshi Masui, Josh Borrow, Calvin Leung, Ryan Raikman, Matthieu Schaller, Joop Schaye, James M. Sullivan · 2026

The dispersion of fast radio bursts (FRBs) measures the column density of free electrons, tracing the diffuse ionized gas that contains more than $90\%$ of all baryons. On linear scales the FRB disper…

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Physics Preprint PDF DOI

Long-time asymptotics of the Newell equation on the line

Deng-Shan Wang, Yingmin Yang · 2026

In 1978, A. C. Newell [SIAM J. Appl. Math. 35(4) (1978) 650-664] proposed an exactly solvable model called Newell equation, which simulates the investigation of significant interaction mechanism betwe…

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Physics Preprint PDF DOI

The PHANGS-H{\alpha} survey. Ground-based narrow-band imaging of nearby star-forming galaxies

Alessandro Razza, Guillermo A. Blanc, Brent Groves, Enrico Congiu, Justus Neumann, Hsi-An Pan, I-Ting Ho, Ashley T. Barnes, Francesco Belfiore, Mederic Boquien, Charlie Burton, Melanie Chevance, Oleg Egorov, Eric Emsellem, Chris Faesi, Simon C. O. Glover, Kathryn Grasha, Ralf S. Klessen, Kathryn Kreckel, Adam K. Leroy, Rebecca McElroy, Ismael Pessa, Eva Schinnerer, Neven Tomicic, Amirnezam Amiri, Gagandeep S. Anand, Yixian Cao, Daniel A. Dale, Simthembile Dlamini, Jing Li, J. Eduardo Mendez-Delgado, Eric J. Murphy, Debosmita Pathak, Miguel Querejeta, Lise Ramambason, Erik Rosolowsky, Fabian Scheuermann, Leonardo Ubeda, Thomas G. Williams · 2026

We present PHANGS-H{\alpha}, a narrow-band imaging survey that maps H{\alpha} emission over a sample of 65 nearby massive star-forming galaxies. The data were obtained using the MPG-ESO 2.2-meter tele…

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Physics Preprint PDF DOI

Thermoinformational State Construction: Generative Energies, Entropies, and H-Theorem Consistency

George-Rafael Domenikos, Lock Yue Chew, Victoria Leong · 2026

We introduce a constructive framework for assigning thermodynamic structure to an arbitrary data system from its measured microstates. Starting from an empirical distribution over configurations, we f…

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Physics Preprint PDF DOI

Wave-Appropriate Reconstruction of Compressible Multiphase and Multicomponent Flows: Fully Conservative and Semi-Conservative Eigenstructures

Amareshwara Sainadh Chamarthi · 2026

Compressible multiphase and multicomponent solvers require accurate interface representation without spurious pressure oscillations. At material interfaces, pressure and velocity are continuous while …

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Physics Preprint PDF DOI

Painlev\'e Asymptotics of the Focusing Nonlinear Schr\"odinger Equation with a Finite-Genus Algebro-Geometric Background

Ruihong ma, Engui Fan · 2026

We investigate the Cauchy problem for the focusing nonlinear Schr\"odinger (NLS) equation \begin{equation} iq_t(x,t)+q_{xx}(x,t)+2|q(x,t)|^2q(x,t)=0,\quad x\in\mathbb{R},\quad t\ge0,\nonumber \end{e…

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Physics Preprint PDF DOI

Frequency upconversion of infrared signals via molecular optomechanical cavities

Fen Zou, Shu-Xian Quan, Yong Li, Hui Dong · 2026

Molecular optomechanical cavities have recently emerged as a promising platform for frequency upconversion, enabling the quantum coherent conversion of infrared signal into the visible range. In a rec…

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Physics Preprint PDF DOI

D2-brane probes of non-toric cDV threefolds via monopole superpotentials

Andres Collinucci, Marina Moleti, Roberto Valandro · 2026

We develop a framework to construct worldvolume gauge theories on D2-branes probing compound Du Val (cDV) Calabi-Yau threefold singularities. By viewing these singularities as ADE surface fibrations o…

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Physics Preprint PDF DOI

Universal Modular Properties of Generalized Gibbs Ensembles and Chiral Deformations

Sujay K. Ashok, Tanmoy Sengupta, Adarsh Sudhakar, Gerard M. T. Watts · 2026

We study modular properties of conformal field theories perturbed by holomorphic fields. We prove an asymptotic formula for the modular S-transform of a generalized partition function that includes ze…

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Physics Preprint PDF DOI

Weak polarized lines of the second solar spectrum (Na, Al, H, He, Ti, Li, Sc, C2 and MgH) observed at the Pic du Midi turret dome

Jean-Marie Malherbe (LIRA, PSL) · 2026

The second solar spectrum is the solar spectrum of Stokes parameter Q observed in linear polarization close to the solar limb. It differs significantly of the usual intensity spectrum (Stokes paramete…

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Physics Preprint PDF DOI

Reconstructed black hole solutions in the scalar-tensor theory with nonminimal coupling

K.K. Ernazarov · 2026

We consider the scalar-tensor theory witn non-minimal coupling in the Jordan frame. The action of the model contains a potential term $U(\varphi)$, a coupling function $f(\varphi)$. We explore a recon…

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Physics Preprint PDF DOI

Feasible Deviations from Unitarity with Vector-Like Quark Singlets

Francisco Albergaria, Francisco J. Botella, G. C. Branco, Jose Filipe Bastos, J. I. Silva-Marcos · 2026

We deduce pertinent relations between the elements of the CKM matrix, and find that not all of these are totally compatible with experiment and/or the assumption of the $3 \times 3$ unitarity. We iden…

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Physics Preprint PDF DOI

Painlev\'e-type asymptotics for the defocusing Manakov system with nonzero boundary conditions

Haibing Zhang, Xianguo Geng, Ruomeng Li, Huan Liu · 2026

We investigate the long-time asymptotic behavior of a class of solutions to the defocusing Manakov system under nonzero boundary conditions. These solutions are characterized by a $3 \times 3$ matrix …

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Physics Preprint PDF DOI

SIREN Residual Error as a Regularity Diagnostic for Navier-Stokes Equations

Jason Burton · 2026

We introduce a method for detecting regularity loss in solutions to the three-dimensional Navier-Stokes equations using the approximation error of Sinusoidal Representation Networks (SIRENs). SIRENs u…

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Physics Preprint PDF DOI

Proto-NUX: A prototype telescope for ground-based near-ultraviolet observations

Rasjied Sloot, Rudy Wijnands, Steven Bloemen, Rik ter Horst, Hans Ellermeijer, Alexander Hoogerbrug · 2026

The Near-UV-eXplorer (NUX) is a proposed ground-based, wide-field telescope array with a field of view of $\sim$70 square degrees, designed to operate over the 300-350 nm wavelength range and to achie…

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Physics Preprint PDF DOI

Isotopic Measurements of SNM using a Portable Neutron Resonance Transmission System for Arms Control

Mital A. Zalavadia, Ethan A. Klein, Michael E. Moore, Jonathan A. Kulisek, Farheen Naqvi, Glen A. Warren, Areg Danagoulian · 2026

Neutron Resonance Transmission Analysis (NRTA) was explored as an arms control verification approach to support potential future nuclear weapon limiting treaties. A compact and portable neutron Time o…

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Physics Preprint PDF DOI

Shadows and Polarization Images of a Four-dimensional Gauss-Bonnet Black Hole Irradiated by a Thick Accretion Disk

Xiao-Xiong Zeng, Huan Ye, Muhammad Israr Aslam, Rabia Saleem · 2026

We adopt a general relativistic ray-tracing approach to study the shadows and polarization images of spherically symmetric Gauss-Bonnet (GB) black holes enveloped by geometrically thick accretion flow…

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Physics Preprint PDF DOI

Nonlinear magnetohydrodynamic modeling of ideal ballooning modes in high-$\beta$ Wendelstein 7-X plasmas

Yao Zhou, K. Aleynikova, Chang Liu, N. M. Ferraro · 2026

We present nonlinear magnetohydrodynamic (MHD) simulations of high-$\beta$ Wendelstein 7-X plasmas using the stellarator extension of the M3D-$C^1$ code, building on the recent work that shows benign …

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