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Physics

arXiv preprints from January 1, 2026 through July 20, 2026 — 07:47:16 EST

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Posted in quant-ph · 2026-01-19 · Jonte R. Hance, Jakov Krnic, Jan-Åke Larsson

Noncontextual versus contextual interferometry

Feynman famously said that single-particle interference is ``a phenomenon which is impossible to explain in any classical way, and which has in it the heart of quantum mechanics.'' In this paper we show that some of the phenomenology of interference can be reproduced in a ``classical'' way, by reproducing the Elitzur-Vaidman Bomb...

💬 0 commentsarXiv:2601.13109v1PDF
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Posted in cond-mat.str-el · 2026-01-19 · Sibo Guo, Wei-Xuan Chang, Yi-Zhuang You, Zi-Xiang Li

Superconductivity in doped symmetric mass generation insulator: a quantum Monte-Carlo study

Understanding unconventional superconductivity (SC) driven by strong electronic correlations is a central challenge in condensed matter physics. In this work, we employ sign-problem-free quantum Monte Carlo (QMC) simulations to systematically investigate a bilayer fermionic model featuring strong interlayer antiferromagnetic (AFM)...

💬 0 commentsarXiv:2601.13108v1PDF
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Posted in quant-ph · 2026-01-19 · Vincenzo Lipardi, David Mestel, Georgios Stamoulis

Product-State Approximation Algorithms for the Transverse Field Ising Model

We study classical polynomial-time approximation algorithms for the transverse-field Ising model (TFIM) Hamiltonian, allowing a mixture of ferromagnetic and anti-ferromagnetic interactions between pairs of qbits, alongside transverse field terms with arbitrary non-negative weights. Our main results are a series of approximation...

💬 0 commentsarXiv:2601.13106v1PDF
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Posted in astro-ph.EP · 2026-01-19 · Alastair B. Claringbold, Chloe E. Fisher, James Kirk, Eva-Maria Ahrer, Anna B. T. Penzlin, Daniel P. Thorngren, Mercedes López-Morales, Peter J. Wheatley, Lili Alderson, Richard A. Booth, Duncan A. Christie, Charlotte Fairman, Nathan J. Mayne, Mason McCormack, Annabella Meech, James E. Owen, Vatsal Panwar, Denis E. Sergeev, Daniel Valentine, Hannah R. Wakeford, Maria Zamyatina

BOWIE-ALIGN: Sub-solar C/O ratio and metallicity atmosphere of the misaligned hot Jupiter HAT-P-30b

We present the JWST NIRSpec/G395H transmission spectrum of the misaligned hot Jupiter HAT-P-30b from 2.8--5.2 $μ$m as part of the BOWIE-ALIGN survey, a comparative survey designed to probe the link between planet formation and atmospheric composition in samples of misaligned and aligned hot Jupiters orbiting F-type stars. Through...

💬 0 commentsarXiv:2601.13104v1PDF
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Posted in quant-ph · 2026-01-19 · Xinxian Chen, Ignacio Franco

Comparison between explicit and implicit discretization strategies for a dissipative thermal environment

We investigate strategies for simulating open quantum systems coupled to dissipative baths by comparing explicit wave function-based discretization [via multi-layer multi-configuration time-dependent Hartree (ML-MCTDH)] and the implicit density matrix-based master equation method [via tree tensor network hierarchical equations of...

💬 0 commentsarXiv:2601.13103v1PDF
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Posted in cond-mat.mtrl-sci · 2026-01-19 · E. A. Tereshina-Chitrova, S. G. Alex, O. Koloskova, L. Havela, L. Horak, O. Romanyuk, F. Huber, T. Gouder, M. Divis

Photoelectron Spectroscopy Study of U-Te Thin Films: A Unified Perspective of Hybridization Effects across Compositions

Uranium tellurides span magnetic and superconducting ground states, yet systematic electronic-structure information across the U-Te series remains scarce. In this study, we perform photoemission measurements on freshly prepared UxTey thin films covering the range of bulk stoichiometries under ultra-high vacuum (10^-9 Pa), enabling...

💬 0 commentsarXiv:2601.13091v1PDF
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Posted in quant-ph · 2026-01-19 · Don MacMillen

Quantum eigenvalues and eigenfunctions of an electron confined between conducting planes

Two of the most iconic systems of quantum physics are the particle in a box and the Coulomb potential (the third is, of course, the harmonic oscillator). In this expository paper, we consider the quantum solution to the problem of an electron confined between the grounded planes of an infinite capacitor. The potential arises from the...

💬 0 commentsarXiv:2601.13278v2PDF
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Posted in astro-ph.EP · 2026-01-19 · Jiyuan Zhang, Weicheng Zang, Andrzej Udalski, Hongjing Yang, Shude Mao, Michał K. Szymański, Igor Soszyński, Radoslaw Poleski, Krzysztof Ulaczyk, Paweł Pietrukowicz, Szymon Kozłowski, Jan Skowron, Przemek Mróz, Sean K. Terry, Andrew Gould

A Newly Identified Degeneracy Keeps the Planetary Interpretation Viable for OGLE-2011-BLG-0950

The microlensing event OGLE-2011-BLG-0950 exhibits the well-known ``Planet/Binary'' degeneracy, in which distinct lens configurations produce similar light curves but imply substantially different mass ratios between the lens components. A previous study suggested that high-resolution imaging could break this degeneracy through...

💬 0 commentsarXiv:2601.13276v1PDF
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Posted in quant-ph · 2026-01-19 · Linghua Zhu, Yulong Dong, Ziyu Zhang, Xiaosong Li

Rethinking Quantum Noise in Quantum Machine Learning: When Noise Improves Learning

Quantum noise is conventionally viewed as a fundamental obstacle in near-term quantum computing, motivating extensive error correction and mitigation strategies. We present numerical evidence that challenges this consensus. Through experiments on quantum graph neural networks for molecular property prediction, we discover that quantum...

💬 0 commentsarXiv:2601.13275v1PDF
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Posted in cond-mat.soft · 2026-01-19 · Akinlade Akintunde, Stewart A. Mallory

Structure and Memory Control Self-Diffusion in Active Matter

Despite extensive progress in characterizing the emergent behavior of active matter, the microscopic origins of self-diffusion in interacting active systems remain poorly understood. Here, we develop a framework that quantitatively links self-diffusion to collisional forces and their temporal correlations in active fluids. We show...

💬 0 commentsarXiv:2601.13274v1PDF
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Posted in quant-ph · 2026-01-19 · E. Stefanutti, J. Philipps, J. Buetow, A. Guidara, M. Nuvoli, A. Chiuri, L. Sansoni

Implementation of Leaking Quantum Walks on a Photonic Processor

Quantum walks (QWs) represent pillars of quantum dynamics and information processing. They provide a powerful framework for simulating quantum transport, designing search algorithms, and enabling universal quantum computation. Several physical platforms have been employed for their implementation, such as trapped atoms and ions,...

💬 0 commentsarXiv:2601.13269v2PDF
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Posted in physics.comp-ph · 2026-01-19 · Ram Pravesh Yadav, Hirdesh K. Pharasi, R. K. Brojen Singh, Anirban Chakraborti

Chaotic Dynamics and Bifurcation Analysis of the Hindmarsh-Rose Neuron Model with Blue-Sky Catastrophe under Magnetic Field Influence

We investigate the impact of magnetic-field-induced feedback on the dynamics of a Hindmarsh-Rose neuron model exhibiting a blue-sky catastrophe. By introducing a magnetic flux variable that couples nonlinearly to the membrane potential, we demonstrate that electromagnetic effects profoundly reshape neuronal firing patterns and...

💬 0 commentsarXiv:2601.13267v1PDF
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Posted in quant-ph · 2026-01-19 · Pedro H. Pereira, F. Impens, C. Farina, P. A. Maia Neto, R. de Melo e Souza

Microscopic Quantum Friction

We report on a microscopic theory of quantum friction. Our approach investigates the interplay between the dispersive response and the relative center-of-mass motion of two ground-state atoms. This coupling yields a quantum force, which can be expressed as a power series in the velocity. The significance of each contribution depends...

💬 0 commentsarXiv:2601.13265v1PDF
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Posted in math-ph · 2026-01-19 · Radosław Antoni Kycia

Covariant tomography of fields

This paper develops 'covariant tomography', a local framework for solving Inverse Boundary Value Problems (IBVP) for parallel transport equation on star-shaped domains. By integrating geometric decomposition with specific interior extensions - radial, heat equation, or harmonic - the method reconstructs currents and gauge potentials...

💬 0 commentsarXiv:2601.13261v2PDF
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Posted in quant-ph · 2026-01-19 · Lev Stambler

Towards Simple and Useful One-Time Programs in the Quantum Random Oracle Model

We construct simulation-secure one-time memories (OTM) in the random oracle model, and present a plausible argument for their security against quantum adversaries with bounded and adaptive depth. Our contributions include: (1) A simple scheme where we use only single-qubit Wiesner states and conjunction obfuscation (constructible from...

💬 0 commentsarXiv:2601.13258v2PDF
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Posted in hep-ex · 2026-01-19 · Giulia Manco

Measurement of multi-jets and vector boson plus jets production in ATLAS

The production of multiple jets or vector bosons in association with jets at the LHC provides a unique testing ground for Quantum Chromodynamics (QCD) in the high-energy regime. With the increasing precision of the ATLAS measurements, detailed studies have become possible on observables that probe different aspects of QCD, such as the...

💬 0 commentsarXiv:2601.13257v1PDF
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Posted in cond-mat.str-el · 2026-01-19 · Merlin Füllgraf, Jiaozi Wang, Jochen Gemmer, Stefan Kehrein

Resonant level model from a Krylov perspective: Lanczos coefficients in a quadratic model

We study the Lanczos coefficients in a quadratic model given by an impurity interacting with a multi-mode field of fermions, also known as resonant level model. We analytically derive closed expressions for the Lanczos coefficients of Majorana fermion operators of the impurity for different structures of the coupling to the...

💬 0 commentsarXiv:2601.13255v3PDF
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Posted in hep-ph · 2026-01-19 · Jia-Le Ding, Zach Gillis, Ulrich Haisch, Brian Moser, Hai Tao Li, Davide Pagani, Luca Rottoli, Ambresh Shivaji, Zong-Guo Si, Jian Wang, Philipp Windischhofer, Xiao Zhang, Dan Zhao

Constraining the Higgs potential using multi-Higgs production

The Higgs self-couplings remain only weakly constrained by current Large Hadron Collider (LHC) measurements, leaving ample room for physics beyond the Standard Model that could modify the structure of the Higgs potential. Multi-Higgs production processes provide a particularly sensitive probe of deviations in both the Higgs trilinear...

💬 0 commentsarXiv:2601.13248v3PDF
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Posted in astro-ph.CO · 2026-01-19 · Theodore Steele, Robert Smith, Roisin O'Connor

An efficient model of cosmology dependence in the covariance matrix of the matter power spectrum

Covariance matrices are essential cosmological probes of fundamental physics, providing information on numerous fundamental physical parameters and varying with any change in the underlying cosmology. However, this cosmology dependence, while providing excellent information, also makes them computationally intensive to compute, as a...

💬 0 commentsarXiv:2601.13245v1PDF
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Posted in cond-mat.mes-hall · 2026-01-19 · Zian Xia, Ruoban Ma, Chang Shu, Huaiyang Yuan, Jiang Xiao

Quantum Entanglement and Teleportation of Magnons in Coupled Spin Chains

This study explores how entanglement and quantum teleportation of magnons can be achieved in coupled spin chain systems. By utilizing different magnetic configurations, we show that parallel spin chains function like magnonic beam splitters, whereas anti-parallel chains produce two-magnon squeezing and strong entanglement. Combining...

💬 0 commentsarXiv:2601.13242v1PDF
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Posted in physics.optics · 2026-01-19 · A. Bilgehan Baspinar, Phillippe Pearson, Andrei Faraon

Multilayer Q-BIC-like Optical Filters with High Throughput Direct-Write Multilayer Lithography

Multilayer metasurfaces provide substantially greater spectral design freedom than single-layer devices, yet their implementation in the visible and near-infrared remains limited by the complexity, cost, and low throughput of conventional nanofabrication. Here, we establish a recently proposed direct-write electron-beam lithography...

💬 0 commentsarXiv:2601.13241v1PDF
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Posted in cond-mat.mtrl-sci · 2026-01-19 · Rafael Almeida, Rodrigo Kiefe, Ricardo Moura Costa Pinto, João Sequeira Amaral, Kyle Dixon-Anderson, Yaroslav Mudryk, João Pedro Araújo, João Horta Belo

Rotating Magnetocaloric Effect in First-order Phase Transition Material Gd5Si2Ge2

The rotating magnetocaloric effect (RMCE) induced by self-demagnetization has been investigated in the giant magnetocaloric effect (GMCE) material Gd$_5$Si$_2$Ge$_2$. This shape-dependent effect had thus far only been reported in pure Gd, marking this as the first analysis of the effect in a sample with a magnetostructural first-order...

💬 0 commentsarXiv:2601.13239v1PDF
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Posted in physics.flu-dyn · 2026-01-19 · V. A. Vladimirov

Discover the GLM and pseudo-Lagrangian equations of fluid dynamics on four pages

The General Lagrangian Mean (GLM) theory uses a set of averaged equations of fluid dynamics to describe interactions between mean flows and waves. These equations are formulated in coordinates that follow the fluid's average velocity and are often referred to as `pseudo-Lagrangian' or `semi-Lagrangian'. This paper focuses on the...

💬 0 commentsarXiv:2601.13237v3PDF
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Posted in cond-mat.mtrl-sci · 2026-01-19 · R. Küchler, S. Panja, S. Wirth, P. Gegenwart

High-Resolution Capacitance Dilatometry of Microscopically Thin Samples Using a Miniature Dilatometer

We present a novel application of our high-resolution capacitance dilatometer, specifically engineered for the precise characterization of quantum materials. These materials, which often appear as ultrathin, platelet-shaped crystals, are known for exotic phenomena such as superconductivity, topological order and quantum spin liquid....

💬 0 commentsarXiv:2601.13231v1PDF
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Posted in cond-mat.mes-hall · 2026-01-19 · Shreyes Nallan, Jian-Gang Zhu

A functionally reversible probabilistic computing architecture enabled by interactions of current-controlled magnetic devices

Probabilistic computers replace logic gates with networks of interacting random variables, creating bidirectional systems that can back-derive inputs from outputs. Such architectures enable efficient generation of random samples, implementations of novel algorithms, and natural solutions to classically hard problems such as prime...

💬 0 commentsarXiv:2601.13229v1PDF