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๐Ÿ” xingyi cheng ๐Ÿ“‚ Physics
Showing 1426 results for "xingyi cheng" in Physics
Physics Preprint PDF DOI

LAMOST J052016.79+345651.7: An EW-type Binary with Emission Line Spectra and Circumstellar Material

Yanhui Chen, Chaomi Duan, Yi Yu ยท 2026

LAMOST J052016.79+345651.7 was identified as an EW-type eclipsing binary by Chen et al. when studying the periodic variable stars based on the ZTF telescope. An orbital period of 0.3507818 days has beโ€ฆ

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Bounded thermal weights from a discrete Boltzmann factor

Abdelmalek Boumali, Yassine Chargui ยท 2026

The discrete Boltzmann factor $B_E(\beta_n)=(1-bE)^n$, introduced by Chung, Hassanabadi, and Boumali, provides a lattice regularization of the canonical weight $e^{-\beta E}$ and imposes the compact-sโ€ฆ

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Optimal Quantum Logarithmic Trace Inequality

Gilad Gour ยท 2026

We establish a sharp logarithmic trace inequality that strengthens recent bounds of Cheng et al.(arXiv:2507.07961) by replacing their prefactor $c_s/s$ with the strictly smaller constant $G_s$. The coโ€ฆ

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Localised Davies generators for unbounded operators

Jeffrey Galkowski, Maciej Zworski ยท 2026

A classical Davies generator provides a Lindbladian for which the Gibbs state is stationary. Its construction involves precise knowledge of the Bohr spectrum or equivalently state evolution for all tiโ€ฆ

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Electrically controlled propulsion of skyrmions in chiral nematic

Oleg D. Lavrentovich ยท 2026

Design of soft matter capable of controllable microscale dynamics is a frontier of modern science. Jiahao Chen et al. demonstrate that an electric field can drive particle-like solitons-skyrmions in aโ€ฆ

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New soliton solutions for Chen-Lee-Liu and Burgers hierarchies and its B\"acklund transformations

Y. F. Adans, H. Aratyn, C. P. Constantinidis, J. F. Gomes, G. V. Lobo, T. C. Santiago ยท 2026

Positive and negative flows of the Chen-Lee-Liu model and its various reductions, including Burgers hierarchy, are formulated within the framework of Riemann-Hilbert-Birkhoff decomposition with the coโ€ฆ

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Frequency Chirping of Energetic-Particle-Driven Geodesic Acoustic Modes in Tokamaks

R. Wu, A. Biancalani, D. Gossard, R. Ivanov, A. Mishchenko, X. Wang, F. Zonca ยท 2026

A suprathermal population of ions is present in tokamak plasmas due to external heating mechanisms and fusion reactions. These energetic particles (EP) can drive wave unstable, via inverse Landau dampโ€ฆ

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A unified approach to the AKNS, DNLS, KP and mKP hierarchies in the anti-self-dual Yang-Mills reduction

Shangshuai Li, Ken-ichi Maruno, Da-jun Zhang ยท 2026

We show a unified approach to the Ablowitz-Kaup-Newell-Segur (AKNS) hierarchy and the unreduced derivative nonlinear Schr\"odinger (DNLS) hierarchies (including the Kaup-Newell, Chen-Lee-Liu, Gerdjikoโ€ฆ

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Causal Structure for Generalized Spinfoams

Carlos E. Beltran ยท 2026

We investigate the role of causality in the generalized EPRL spinfoam model introduced by Kaminski, Kisielowski, and Lewandowski (EPRL-KKL). We first propose a definition of causal structure on an arbโ€ฆ

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CHANG-ES. XXXVIII. A Thin Radio Halo Shaped by Slow Cosmic-Ray Transport in the Quiescent Galaxy NGC 4565

Jianghui Xu, Jiang-Tao Li, Guilin Liu, Luan Luan, Volker Heesen, Rainer Beck, Judith Irwin, Q. Daniel Wang, Michael Stein, Li-Yuan Lu, Yang Yang, Jeroen Stil, Jayanne English, Ralf-Jurgen Dettmar ยท 2026

We present the VLA C-array S-band (2--4 GHz) radio continuum observations of the nearby edge-on spiral galaxy NGC 4565, a target from the Continuum Halos in Nearby Galaxies - an EVLA (CHANG-ES) Surveyโ€ฆ

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Pseudoscalar and vector toponia in a Dyson--Schwinger--Bethe--Salpeter framework

H.-R. Zhang, Z.-F. Cui, J. Segovia ยท 2026

We study the pseudoscalar ($J^{PC}=0^{-+}$) and vector ($1^{--}$) top--antitop (toponium) systems within the rainbow--ladder truncation of the Dyson--Schwinger and Bethe--Salpeter equations, employingโ€ฆ

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

Jason Burton ยท 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 uโ€ฆ

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4D Synchrotron X-Ray Multi Projection Imaging (XMPI) for studying multiphase flow dynamics and flow instabilities in porous networks

Patrick Wegele, Zisheng Yao, Jonas Tejbo, Julia K.Rogalinski, Zhe Hu, Yuhe Zhang, Erfan Oliaei, Saeed Davoodi, Alexander Groetsch, Kim Nyg{aa}rd, Eleni Myrto Asimakopoulou, Tomas Rosen, Pablo Villanueva-Perez, L. Daniel Soderberg ยท 2026

Flow instabilities such as Haines jumps in porous media are common phenomena that occur on sub-second timescales. X-rays are particularly suitable for investigating these processes because they providโ€ฆ

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HELIOS: A surface integral equation software for light scattering in homogeneous, periodic, and stratified environments

Parmenion S. Mavrikakis, Olivier J. F. Martin ยท 2026

We present HELIOS (HomogEneous and Layered medIa Optical Scattering), an open-source surface integral equation (SIE) software designed for modeling light scattering by particles embedded in homogeneouโ€ฆ

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Rephasing invariant structure of CP phase for simplified mixing matrices in Fritzsch--Xing parametrization

Masaki J. S. Yang ยท 2026

In this paper, we construct an explicit rephasing transformation that converts an arbitrary unitary mixing matrix into the Fritzsch--Xing (FX) parametrization, which is obtained by trivializing argumeโ€ฆ

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Erasure Thresholds for Hyperbolic and Semi-Hyperbolic Surface Codes

Aygul Azatovna Galimova ยท 2026

We extend the circuit-level erasure noise model and Wang et al.\ quadratic expansion fitting of Chang et al.\ from planar surface codes to hyperbolic CSS surface codes. Under Chang et al.'s noise modeโ€ฆ

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Fluid transport by a single active filament in a three-dimensional two-phase flow

Qian Mao, Umberto d'Ortona, Julien Favier ยท 2026

Micro-scale cilia play a vital role in mucociliary clearance (MCC) in the human respiratory airways. In this numerical study, we examine fluid transport driven by the active beating of a single filameโ€ฆ

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Dielectric formalism of the 2D uniform electron gas at finite temperatures

Fotios Kalkavouras, Tobias Dornheim, Paul Hamann, Panagiotis Tolias ยท 2026

We present a comprehensive analysis of the two-dimensional uniform electron gas (2D-UEG or more commonly 2DEG) at finite temperature, spanning a broad range of densities / coupling strengths ($0.01\leโ€ฆ

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Superball of Strings

Yoav Zigdon ยท 2026

I solve the equations of the low-energy limit of string theory to obtain a solution corresponding to a microcanonical ensemble of highly-excited superstrings. This ``Superball of Strings'' is a staticโ€ฆ

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Exclusive Decays of the Fully Heavy Tetraquarks into Light Mesons

Feng Feng, Ming-Ming Liu ยท 2026

In this work, we investigate the exclusive decays of the fully heavy tetraquark states $T_{4c,b}$ into light mesons, specifically $\pi$ and $K$, using the framework of Non-Relativistic QCD (NRQCD) andโ€ฆ

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