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Physics

arXiv preprints from January 1, 2026 through September 8, 2026 — 12:26:36 EST

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Posted in astro-ph.GA · 2026-01-13 · Kristen C. Dage, Emily L. Hunt, Jasmine Anderson-Baldwin, Evangelia Tremou, Khushboo K. Rao, Kwangmin Oh, Malu Sudha, Jarrod Hurley, Robert D. Mathieu, Aarya Patil, Richard M. Plotkin, Andrew M. Hopkins, Jacco Th. van Loon, Jayde Willingham

The Secret Lives of Open Clusters: a Multiwavelength Examination of Three Open Clusters

Star clusters are well known for their dynamical interactions, an outcome of their high stellar densities; in this paper we use multiwavelength observations to search for the unique outcomes of these interactions in three nearby Galactic open clusters: IC 2602 (30 Myr), NGC 2632 (750 Myr) and M67 (4 Gyr). We compared X-ray...

💬 0 commentsarXiv:2601.08087v1PDF
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Posted in physics.flu-dyn · 2026-01-13 · Xiaofeng Liu, Yong G. Lai

Physics-Informed Deep Operator Learning for Computational Hydraulics Modeling

Traditional 2D hydraulic models face significant computational challenges that limit their applications that are time-sensitive or require many model evaluations. This study presents a physics-informed Deep Operator Network (DeepONet) framework for computational hydraulics modeling that learns the solution operator of the 2D shallow...

💬 0 commentsarXiv:2601.08086v1PDF
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Posted in quant-ph · 2026-01-13 · Vicente Peña Pérez, Matthew D. Grace, Christian Arenz, Alicia B. Magann

Learning parameter curves in feedback-based quantum optimization algorithms

Feedback-based quantum algorithms (FQAs) operate by iteratively growing a quantum circuit to optimize a given task. At each step, feedback from qubit measurements is used to inform the next quantum circuit update. In practice, the sampling cost associated with these measurements can be significant. Here, we ask whether FQA parameter...

💬 0 commentsarXiv:2601.08085v1PDF
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Posted in cond-mat.mtrl-sci · 2026-01-13 · Mrinmay Sahu, Sorb Yesudhas, Valery I. Levitas, Dean Smith

Pressure-Induced Martensitic Phase Transformation and Microstructure Evolution in nanograined $\text{Fe}\text{-}7\%\text{Mn}$ Alloy

The Fe-Mn-based alloys are receiving immense attention due to their applications in the third generation of advanced high-strength steels, owing to their high strength and ductility. A detailed in situ high-pressure structural phase transformation and microstructural evolution in nanograined $\text{Fe}\text{-}7\%\text{Mn}$ alloy has...

💬 0 commentsarXiv:2601.08202v1PDF
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Posted in cond-mat.supr-con · 2026-01-13 · Kaito Totsuka, Yohei Kono, Yusei Shimizu, Ai Nakamura, Atsushi Miyake, Dai Aoki, Yasumasa Tsutsumi, Kazushige Machida, Shunichiro Kittaka

Nodal Superconductivity of UTe$_2$ Probed by Field-Angle-Resolved Specific Heat on a Crystal with $T_{\rm c}=2.1$ K

Field-angle-resolved specific-heat measurements were performed on a clean single crystal of a spin-triplet superconductor UTe$_2$ with $T_{\rm c}=2.1$ K and a low residual electronic specific heat. At low temperatures, the specific heat exhibits a linear dependence on the magnetic field when the field is applied precisely along the...

💬 0 commentsarXiv:2601.08201v2PDF
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Posted in nucl-th · 2026-01-13 · Rongzhe Hu, Jianguo Li, Siqin Fan, Furong Xu

Chiral three-nucleon forces for the new local position-space two-nucleon potential in $\textit{ab initio}$ many-body calculations

Three-nucleon force (3NF) plays an important role in understanding the structure of finite nuclei and the saturation properties of infinite nuclear matter. More specifically, 3NF should be necessary for each two-nucleon force (2NF) to obtain more accurate description of nuclear systems. 3NF derived from the chiral effective field...

💬 0 commentsarXiv:2601.08199v2PDF
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Posted in gr-qc · 2026-01-13 · Maribel Hernández-Márquez, Bryan Mendoza-Meza, Tonatiuh Matos, Tula Bernal, Miguel Alcubierre

A natural explanation of the Galactic Magnetic Fields from multistate Scalar Field Dark Matter

In this article, we investigate the possibility that the large-scale magnetic fields observed in galaxies, of the order of microgauss, arise naturally from a complex Scalar Field Dark Matter (SFDM) halo charged under a local $U(1)$ symmetry. Extending our previous work, where multistate SFDM solutions were shown to form...

💬 0 commentsarXiv:2601.08197v1PDF
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Posted in physics.gen-ph · 2026-01-13 · Albert Stebbins

A Space-Time Fluid (Unabridged)

Purpose: This essay is a retelling of general relativity in a language in which space-time geometry is expressed as a fluid. This trivial and useful reformulation gives 1) a non-perturbative covariant description of cosmological inhomogeneities and 2) a simple formula describing how cosmic inhomogeneities are generated on...

💬 0 commentsarXiv:2601.16996v1PDF
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Posted in physics.optics · 2026-01-13 · Hongjing Xu, Andrey Baydin, Qinyan Yi, I-Te Lu, Ningxu Zhu, T. Elijah Kritzell, Jacques Doumani, Dasom Kim, Fuyang Tay, Angel Rubio, Junichiro Kono

Vacuum-dressed superconductivity in NbN observed in a high-$Q$ terahertz cavity

Emerging theoretical frameworks suggest that physical properties of matter can be altered within an optical cavity by harnessing quantum vacuum electromagnetic fluctuations, even in the total absence of external driving fields. Among the most intriguing predictions is the potential to noninvasively manipulate superconductivity. Here,...

💬 0 commentsarXiv:2601.08191v1PDF
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Posted in cond-mat.mtrl-sci · 2026-01-13 · Ming-Chiang Chang, Maximilian Amsler, Duncan R. Sutherland, Sebastian Ament, Katie R. Gann, Lan Zhou, Louisa M. Smieska, Arthur R. Woll, John M. Gregoire, Carla P. Gomes, R. Bruce van Dover, Michael O. Thompson

Autonomous Materials Exploration by Integrating Automated Phase Identification and AI-Assisted Human Reasoning

Autonomous experimentation holds the potential to accelerate materials development by combining artificial intelligence (AI) with modular robotic platforms to explore extensive combinatorial chemical and processing spaces. Such self-driving laboratories can not only increase the throughput of repetitive experiments, but also...

💬 0 commentsarXiv:2601.08185v1PDF
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Posted in math-ph · 2026-01-13 · José M. Gracia-Bondía, Joseph C. Várilly

Algebras of distributions suitable for phase-space quantum mechanics. I

The twisted product of functions on $R^{2N}$ is extended to a $*$-algebra of tempered distributions which contains the rapidly decreasing smooth functions, the distributions of compact support, and all polynomials, and moreover is invariant under the Fourier transformation. The regularity properties of the twisted product are...

💬 0 commentsarXiv:2601.08180v1PDF
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Posted in astro-ph.SR · 2026-01-13 · Udomlerd Srisuchinwong, Jianzhao Zhou, Huan-Yu Teng, Guang-Yao Xiao, Bun'ei Sato, Takuya Takarada, Masashi Omiya, Hiroki Harakawa, Eiji Kambe, Hideyuki Izumiura, Michitoshi Yoshida, Yoichi Itoh, Hiroyasu Ando, Eiichiro Kokubo, Marc Hon, Yujuan Liu, Fei Zhao, Wei Wang, Meng Zhai, Shaolan Bi, Gang Zhao

Unraveling Year-Long Radial Velocity Variations in Red Clump Region -- I: Comprehensive analysis of a K0 Giant star, 2 Draconis

Slow-rotating evolved stars frequently exhibit radial velocity (RV) variations on annual timescales, complicated by instrumental systematics and aliasing in the one-year regime. Here we investigate the origin of the near-yearly periodicity in 2 Dra, a star located in the red-clump region, assessing possible causes between stellar...

💬 0 commentsarXiv:2601.08164v1PDF
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Posted in physics.flu-dyn · 2026-01-13 · Jing Zhang, Ruihan Qin, Zhixue Guo, Huantao Xu, Jiahui Zhou, Yun Bai

An Investigation into the Applicability of Friction Velocity Estimation Methods for the Channel with A Deposit Body

This study investigates how the deposit body influences friction characteristics by altering local flow fields, which is closely related to bed shear stress. Using generalized flume experiments, the study assesses the applicability of classical uniform flow friction models in deposit body river sections, revealing frictional changes...

💬 0 commentsarXiv:2601.08163v1PDF
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Posted in astro-ph.HE · 2026-01-13 · M. Anzorena, E. de la Fuente, K. Fujita, R. Garcia, Y. Hayashi, K. Hibino, N. Hotta, G. Imaizumi, Y. Katayose, C. Kato, S. Kato, T. Kawashima, K. Kawata, M. Kobayashi, S. Kobayashi, T. Koi, H. Kojima, P. Miranda, S. Mitsuishi, A. Mizuno, K. Munakata, Y. Nakamura, M. Nishizawa, Y. Noguchi, S. Ogio, M. Ohishi, M. Ohnishi, A. Oshima, M. Raljevic, H. Rivera, T. Saito, T. Sako, T. K. Sako, S. Shibata, A. Shiomi, M. Subieta, F. Sugimoto, N. Tajima, W. Takano, Y. Takeyama, M. Takita, N. Tamaki, Y. Tameda, K. Tanaka, R. Ticona, H. Tsuchiya, Y. Tsunesada, S. Udo, G. Yamagishi, Y. Yamanaka, K. Yamazaki, Y. Yokoe

Observation of the Forbush decrease on 2024 May 10, using the ALPAQUITA air-shower array at the 70-1000 GV rigidity range

The Andes Large area PArticle detector for Cosmic ray and Astronomy (ALPACA) is a new air-shower array experiment under construction in the Bolivian Andes, and its prototype ALPAQUITA surface array has been operating since 2023 April. In addition to the traditional $\ge$3-hit or $\ge$4-hit coincidences to trigger recording air-shower...

💬 0 commentsarXiv:2601.08154v1PDF
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Posted in nucl-th · 2026-01-13 · Qi Meng, Chang Xu

Light Nuclei embedded in a Nuclear Medium: Clustering and Mott Transitions

The clustering of nucleons is a fundamental phenomenon with broad implications for nuclear physics and astrophysics. In this work, we employ a microscopic in-medium few-body approach to systematically investigate the formation and dissolution of light clusters (deuteron, $\rm{^3H}$, $\rm{^3He}$, $α$-particle) embedded in nuclear...

💬 0 commentsarXiv:2601.08145v1PDF
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Posted in hep-ex · 2026-01-13 · Amit Pathak

Search for new physics with baryons at BESIII

The BESIII experiment at BEPCII provides a clean environment to test baryon-dark sector connections and baryon-number violation. Using $10^{10}$ $J/ψ$ events, searches were performed for $Σ^{+}\to p+\text{inv}$, $Ξ^{-}\toπ^{-}+\text{inv}$, and $\barΛ-Λ$ oscillations. No excess was observed, yielding $\mathcal{B}(Σ^{+}\to...

💬 0 commentsarXiv:2601.08140v1PDF
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Posted in physics.plasm-ph · 2026-01-13 · Wan Dong, Yi Wang, Yi-Fan Zhang, Yuan-Hong Song

The effect of surface quenching coefficients of $O_2(a^{1}Δg)$ and $O_2(b^{1}Σg^{+})$ on capacitively coupled $Ar$/$O_2$ discharge: A global/equivalent circuit model study

Capacitively coupled discharges operated in mixtures of $Ar$ and $O_2$ are extensively utilized in plasma etching and deposition processes due to the oxidative properties and precursor functionality of the reactive species produced in the discharge. In $Ar$/$O_2$ discharges, the surface quenching coefficient of $O_2(a^{1}Δg)$ is known...

💬 0 commentsarXiv:2601.08138v1PDF
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Posted in quant-ph · 2026-01-13 · Kazuhiro Seki, Yuta Kikuchi, Tomoya Hayata, Seiji Yunoki

Dissipative ground-state preparation of a quantum spin chain on a trapped-ion quantum computer

We demonstrate a dissipative protocol for ground-state preparation of a quantum spin chain on a trapped-ion quantum computer. As a first step, we derive a Kraus representation of a dissipation channel for the protocol recently proposed by Ding et al. [Phys. Rev. Res. 6, 033147 (2024)] that still holds for arbitrary temporal...

💬 0 commentsarXiv:2601.08137v2PDF
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Posted in quant-ph · 2026-01-13 · Thomas Barthel

Cost scaling of MPS and TTNS simulations for 2D and 3D systems with area-law entanglement

Tensor network states are an indispensable tool for the simulation of strongly correlated quantum many-body systems. In recent years, tree tensor network states (TTNS) have been successfully used for two-dimensional systems and to benchmark quantum simulation approaches for condensed matter, nuclear, and particle physics. In...

💬 0 commentsarXiv:2601.08132v1PDF
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Posted in cond-mat.soft · 2026-01-13 · Zhongqiang Xiong, Shigeyuki Komura, Masao Doi

Brownian motion of a rod threading through a ring with fixed ring-center

We study the Brownian motion of a rigid rod threading through a small fixed ring while the ring can freely rotate. We derive the distribution function for the sliding displacement and the unit vector along the rod both at equilibrium and non-equilibrium. The equilibrium distribution is quadratic in the sliding displacement and is...

💬 0 commentsarXiv:2601.08130v2PDF
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Posted in cond-mat.mtrl-sci · 2026-01-13 · Zhong Shen, Jun Chen, Xiaoyan Yao, Shuai Dong

Magnetoelectric torque in polar magnetic bilayers

Energy-efficient fast switching of spin orientations or textures is a core issue of spintronics, which is highly demanded but remains challenging. Different from the mainstream routes based on spin-transfer torque or spin-orbit torque, here we propose another mechanism coined as magnetoelectric torque to switch the magnetization in...

💬 0 commentsarXiv:2601.08117v1PDF
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Posted in cond-mat.mtrl-sci · 2026-01-13 · Takanori Ishii, Kaoru Hisama, Kohei Shinohara

Symmetry-aware Conditional Generation of Crystal Structures Using Diffusion Models

The application of generative models in crystal structure prediction (CSP) has gained significant attention. Conditional generation--particularly the generation of crystal structures with specified stability or other physical properties has been actively researched for material discovery purposes. Meanwhile, the generative models...

💬 0 commentsarXiv:2601.08115v1PDF
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Posted in cond-mat.soft · 2026-01-13 · Lauren Dutcher, Benjamin Baylis, John R. Dutcher, Elie Raphael, Kari Dalnoki-Veress

Spreading and absorption of silicone oil droplets on silicone elastomer films

When a liquid droplet completely wets a hard substrate, its spreading dynamics follow Tanner's law, with the droplet radius growing as the one-tenth power of time. Here, we investigate how these dynamics change when silicone oil droplets spread on soft silicone elastomer and gel films supported by a rigid silicon substrate. While the...

💬 0 commentsarXiv:2601.08114v1PDF
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Posted in astro-ph.GA · 2026-01-13 · Jordan C. J. D'Silva, Simon P. Driver, Aaron S. G. Robotham, Andrew Battisti, Elisabete da Cunha, Luke J. M. Davies, Stephen Eales, Claudia del P. Lagos

The contribution of stars, dust, neutral gas and supermassive black holes in galaxies to the cosmic baryon inventory

We compute the cosmic stellar, dust and neutral gas mass history at $0<z\lesssim3$ using ProSpect spectral energy distribution modelling of $\approx 800 \, 000$ galaxies in the Galaxy and Mass Assembly (GAMA) survey and the Deep Extragalactic VIsible Legacy Survey (DEVILS). The cosmic dust mass history broadly follows the shape of the...

💬 0 commentsarXiv:2601.08112v3PDF
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Posted in physics.app-ph · 2026-01-13 · Ané Kritzinger, Ralf Mouthaan, Graham D. Bruce, Eric Wilkes, Kishan Dholakia

Through the bottle authentication of red wine using near-IR fluorescence spectroscopy

A major unaddressed challenge for food science remains the accurate characterisation of contents in sealed containers with a non-invasive method. This issue is particularly pressing for tackling fraud in the red wine industry, valued at billions of dollars globally, where product authenticity, brand reputation, and consumer trust are...

💬 0 commentsarXiv:2601.08298v1PDF