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Physics Preprint PDF DOI

Regular ultracompact objects with anti-de Sitter cores as polymerized vacuum solutions

Hongguang Liu, Ioannis Soranidis · 2026

We present a systematic derivation of regular black hole solutions - and their horizonless counterparts - that achieve regularization via an anti-de Sitter core. These geometries emerge as polymerized…

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Physics Preprint PDF DOI

Cosmological Observational Tests in the JWST Era. II: The Tolman Test

V. V. Tsymbal, A. A. Raikov, N. Yu. Lovyagin · 2026

In this work, we investigate a classical cosmological test - the dependence of galaxy surface brightness on redshift z (the Tolman test). We analyzed 6 860 galaxies with reliably determined spectrosco…

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Physics Preprint PDF DOI

Intermediate-state Coulomb-corrected strong-field approximation for rescattering processes

Chunli Miao, Jiarui Qin, Chan Li, Xiaolei Hao, Weidong Li, Jing Chen · 2026

We analytically derive the all-order strong-field S-matrix series incorporating intermediate-state Coulomb-Volkov corrections (ICSFA). Focusing on rescattering processes described by the second-order …

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Physics Preprint PDF DOI

A Physics Informed Bayesian Neural Network for the Neutron Star Equation of State

J.D. Baker, C.A. Bertulani, R.V. Lobato · 2026

We present a physics-informed Bayesian neural-network framework to infer neutron-star equations of state from theoretical priors and to propagate the associated uncertainties to stellar observables. T…

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Physics Preprint PDF DOI

Hyperaccreting Neutron Stars inside Massive Envelopes: The Implausibility of Thorne-\.Zytkow Objects

Patrick Chi-Kit Cheong, David Radice, Christopher L. Fryer · 2026

The evolution of neutron stars (NSs) embedded within massive stellar envelopes is a critical phase in binary stellar evolution, potentially leading to the formation of Thorne-\.Zytkow Objects (T\.ZOs)…

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Physics Preprint PDF DOI

Quasinormal Modes and Neutrino Energy Deposition for a Magnetically Charged Black Hole in a Hernquist Dark Matter Halo

Ali Ovgun, Reggie C. Pantig, Joel Saavedra · 2026

We investigate quasinormal modes, shadow observables, weak gravitational lensing, and neutrino--antineutrino annihilation for a static, spherically symmetric black hole that carries a nonlinear-electr…

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Computer Science Preprint PDF DOI

CuRast: Cuda-Based Software Rasterization for Billions of Triangles

Markus Schutz, Lukas Lipp, Elias Kristmann, Michael Wimmer · 2026

Previous work shows that small triangles can be rasterized efficiently with compute shaders. Building on this insight, we explore how far this can be pushed for massive triangle datasets without the n…

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Physics Preprint PDF DOI

Hawking radiation from black holes in 2+1 dimensions

Akriti Garg, Ayan Chatterjee · 2026

The paper develops a model to understand the effective quantum geometry of a black hole horizon and the emission of Hawking spectrum in 2+1 dimensions. We argue that one may view the black hole horizo…

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Earth & Environmental Sciences Preprint PDF DOI

Stellar flare-driven evolution of primordial early exo-Earth atmospheres: Insights from a Young M Dwarf Flare model

E. Mamonova, K. Herbst, V. Kofman, O. Ozgurel, A. F. Kowalski, S. Wedemeyer, S. C. Werner · 2026

Context. M dwarfs are key targets for terrestrial exoplanet studies, with prospects for atmospheric spectroscopy. However, strong stellar magnetic activity and frequent flaring require modelling effor…

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Chemistry Preprint PDF DOI

How is a gas sensor poisoned by volatile methylsiloxanes?

Heng Liu, Bingxin Yang, Yiming Lu, Yuan Wang, Xue Jia, Long Luo, Hao Li · 2026

Volatile methyl siloxanes (VMSs), widely present in consumer and industrial products, have attracted increasing concerns due to their persistence, bioaccumulation behavior, and adverse health effects.…

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Physics Preprint PDF DOI

A Poincar\'e-covariant study of strange quark stars

Hao-Ran Zhang, Bo-Lin Li, Zhu-Fang Cui · 2026

We investigate the properties of dense quark matter and strange quark stars within a nonperturbative, Poincar\'e-covariant framework. Employing a symmetry-preserving vector$\,\otimes\,$vector contact …

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Mathematics Preprint PDF DOI

Computing the Cousin-Zuckerman Resolution and the Lusztig-Vogan Bijection

Jack A. Cook · 2026

The goal of this article is to give a proof of a result seemingly absent from the literature characterizing global sections of standard $\mathcal{D}$-modules on the flag variety. This characterization…

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Economics & Finance Preprint PDF DOI

Can Institutional Integration of Western Balkans Stock Exchanges Strengthen Monetary Transmission?

Stefan Tanevski · 2026

This paper asks how institutional stock-market integration reshapes the transmission of monetary policy through asset prices in small open economies. Motivated by the persistent segmentation of Wester…

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Physics Preprint PDF DOI

Orkan: Cache-friendly simulation of quantum operations on hermitian operators

Timo Ziegler · 2026

Classical simulation of quantum operations is essential for algorithm design, noise characterisation, and benchmarking of quantum hardware. The most general physically realisable operation can be desc…

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Physics Preprint PDF DOI

Singular Solutions of the Tolman Oppenheimer Volkoff Equation with a Cosmological Constant Classification and Properties

Christos Dounis, Charis Anastopoulos · 2026

We study the Tolman-Oppenheimer-Volkoff equation in the presence of a cosmological constant for general thermodynamically consistent equations of state, without imposing regularity at the center. Form…

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Physics Preprint PDF DOI

Buchdahl Limit and TOV Equations in Interacting Vacuum Scenarios

Rodrigo Maier · 2026

We investigate the stability of ultra-compact stellar configurations in the context of an interacting vacuum component. By extending the Tolman-Oppenheimer-Volkoff equations to include a covariant ene…

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Engineering Preprint PDF DOI

VULCAN: Vision-Language-Model Enhanced Multi-Agent Cooperative Navigation for Indoor Fire-Disaster Response

Shengding Liu, Qiben Yan · 2026

Indoor fire disasters pose severe challenges to autonomous search and rescue due to dense smoke, high temperatures, and dynamically evolving indoor environments. In such time-critical scenarios, multi…

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Physics Preprint PDF DOI

Arbitrary-Velocity Volkov Wavepackets

D. Ramsey, J. McKeown, J. P. Palastro · 2026

The evolution of a charged lepton in the field of an electromagnetic plane wave can be described as a superposition of Volkov states. Here we demonstrate that imposing specific momentum correlations a…

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Mathematics Preprint PDF DOI

The solvability of the inverse volcano problem over non-prime finite fields

Alexandru Ghitza, Dhruv Gupta, Maximilian Kortge · 2026

For a finite field $\mathbf{F}_{p^k}$ and a prime $\ell \neq p$, consider the graph $G$ of $\ell$-isogenies between ordinary elliptic curves over $\mathbf{F}_{p^k}$. Kohel proved that the connected co…

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Computer Science Preprint PDF DOI

Infernux: A Python-Native Game Engine with JIT-Accelerated Scripting

Lizhe Chen · 2026

This report describes Infernux, an open-source game engine that pairs a C++17/Vulkan real-time core with a Python production layer connected through a single pybind11 boundary. To close the throughput…

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