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Physics

arXiv preprints from January 1, 2026 through September 8, 2026 — 09:06:18 EST

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Posted in astro-ph.SR · 2026-01-14 · Ian G. Richardson, Tycho T. von Rosenvinge, O. Chris St. Cyr, David Lario, J. Grant Mitchell, Eric R. Christian

Solar Energetic Proton Events Observed by the High Energy Telescopes on the STEREO Spacecraft or at the Earth During the First Solar Orbit of STEREO A (2006 to 2023)

The twin STEREO A and B spacecraft were launched in October 2006 into heliocentric orbits at around 1 AU, advancing ahead of or lagging behind Earth, respectively, at around 22 deg./year. The spacecraft provide in-situ observations of the solar wind and energetic particle populations, as well as remote sensing observations of solar...

💬 0 commentsarXiv:2601.09630v1PDF
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Posted in physics.ins-det · 2026-01-14 · Avirup Roy, Robinjeet Singh, Joel C. Weber, W. B. Doriese, Johnathon Gard, Mark W. Keller, John A. B. Mates, Kelsey M. Morgan, Nathan J. Ortiz, Daniel S. Swetz, Daniel R. Schmidt, Joel N. Ullom, Evan P. Jahrman, Thomas C. Allison, Sasawat Jamnuch, John Vinson, Charles J. Titus, Cherno Jaye, Daniel A. Fischer, Galen C. O'Neil

Characterization of Silicon-Membrane TES Microcalorimeters for Large-Format X-ray Spectrometers with Integrated Microwave SQUID Readout

We present the electro-thermal characterization of transition-edge sensor (TES) detectors suspended on Si membranes fabricated using a silicon-on-insulator (SOI) wafer. The use of an all-silicon fabrication platform, in contrast to the more commonly used silicon nitride membranes, is compatible with monolithic fabrication of...

💬 0 commentsarXiv:2601.09629v1PDF
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Posted in physics.optics · 2026-01-14 · J. R. Silva

Spectral Distribution of Exceptional Points in Lattices with Localized Loss

We explore the existence and stability of exceptional points (EPs) in finite waveguide arrays subject to single-site dissipation. We show that the EP landscape is dictated by a geometry-dependent parity effect, leading to strictly distinct spectral behaviors for arrays with even versus odd numbers of waveguides. Through analytical...

💬 0 commentsarXiv:2601.09628v1PDF
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Posted in cond-mat.mtrl-sci · 2026-01-14 · Claire Griesbach, Tizian Scharsach, Morgan Trassin, Dennis M. Kochmann

Ferroelectric polarization mapping through pseudosymmetry-sensitive EBSD reindexing

Ferroelectric materials exhibit a switchable, spontaneous polarization at the unit cell level--an attractive property utilized in many emerging technologies including, among others, high-density memory storage, low-power transistors, and high-speed fiber optic communication. Understanding the local polarization switching behavior,...

💬 0 commentsarXiv:2601.09627v1PDF
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Posted in physics.plasm-ph · 2026-01-14 · Punit Kumar, Abhishek Kumar Singh, Priti Saxena

Plasma-Enhanced Germination in North Indian Wheat

The application of nonthermal plasma in agriculture has emerged as a sustainable and eco-friendly method to enhance seed vigor, germination, and crop productivity. This study investigates the effects of atmospheric pressure plasma treatment on five popular bread wheat varieties of North India, WH 1142, HI 1544, GW 366, GW 322, and GW...

💬 0 commentsarXiv:2601.14291v1PDF
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Posted in hep-th · 2026-01-14 · Sidan A, Tom Banks

Diamonds in the Bulk and Large-$N$ Scaling in AdS/CFT

Quantum Field Theory introduced us to the notion that a causal diamond in space-time corresponded to a subsystem of a quantum mechanical system defined on the global space-time. Work by Jacobson, Fischler and Susskind, and particularly Bousso suggested that, in the quantum theory of gravity, this subsystem should have a density matrix...

💬 0 commentsarXiv:2601.09621v4PDF
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Posted in physics.flu-dyn · 2026-01-14 · Theodore D. Drivas

Mathematical Theorems on Turbulence

In these notes, we emphasize Theorems rather than Theories concerning turbulent fluid motion. Such theorems can be viewed as constraints on the theoretical predictions and expectations of some of the greatest scientific minds of the 20th century: Lars Onsager, Andrey Kolmogorov, Lev Landau, Lewis Fry Richardson among others.

💬 0 commentsarXiv:2601.09619v2PDF
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Posted in physics.plasm-ph · 2026-01-14 · H. Frerichs, J. Van Blarcum, T. Cote, S. K. Kim, Y. Q. Liu, S. M. Yang

Comparison of plasma response models for RMP effects on the divertor and scrape-off layer in KSTAR

Resonant magnetic perturbations (RMPs) are beneficial for control of edge localized modes (ELMs) in tokamaks. Nevertheless, a side effect is the appearance of a helical striations in the particle and heat loads onto divertor targets. The extent and field line connection of these striations is significantly altered by the plasma...

💬 0 commentsarXiv:2601.09617v1PDF
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Posted in nucl-th · 2026-01-14 · Xiang-Xiang Sun, Vadim Baru, Arseniy A. Filin, Evgeny Epelbaum, Hermann Krebs, Ulf-G. Meißner, Andreas Nogga

Ab initio charge form factors and radii of light isoscalar nuclei: Role of the two-body charge density

We make \textit{ab initio} predictions of charge form factors (FFs) and radii for the isoscalar nuclei $^6$Li and $^8$Be using the Jacobi-coordinate No-Core Shell Model. The calculations employ chiral semilocal momentum-space regularized two- and three-nucleon interactions, together with consistently regularized one- and two-nucleon...

💬 0 commentsarXiv:2601.09614v1PDF
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Posted in hep-th · 2026-01-14 · Irina Ya. Aref'eva, Ali Hajilou, Kristina Rannu, Pavel Slepov

Spatial Wilson Loops and Energy Loss for Heavy Quarks in Magnetized HQCD Model

We investigate the effective potential and the string tension for the spatial Wilson loop (SWL) in hot dense QGP with two types of anisotropy, i.e. external magnetic field and spatial anisotropy, employing a holographic approach for the heavy quark model. In this approach, the string is extended in the 5th, holographic direction and...

💬 0 commentsarXiv:2601.09611v1PDF
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Posted in physics.optics · 2026-01-14 · Arjun Nayak, Mathieu Dumergue, Sourin Mukhopadhyay, Debobrata Rajak, Naveed Ahmed, János Csontos, Szabolcs Tóth, Prabhash Prasannan Geetha, Ioannis Orfano, Emmanouil Skantzakis, Paraskevas Tzallas, Dimitris Charalambidis, Katalin Varjú, Subhendu Kahaly, Zsolt Diveki

A High Intensity Attosecond Light Source in Compact Geometry at ELI ALPS User Facility

High-order harmonic generation (HHG) has become a standard technique for producing attosecond XUV pulses in the laboratory, yet the high flux necessary for nonlinear XUV photoionization remains accessible to only a few research groups. Here, we introduce the SYLOS Compact high-harmonic beamline at ELI ALPS, specifically designed to...

💬 0 commentsarXiv:2601.09608v1PDF
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Posted in gr-qc · 2026-01-14 · Ciro De Simone, Sebastian H. Völkel, Kostas D. Kokkotas, Vittorio De Falco, Salvatore Capozziello

Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr

The accurate computation of quasinormal modes from rotating black holes beyond general relativity is crucial for testing fundamental physics with gravitational waves. In this study, we assess the accuracy of the eikonal and post-Kerr approximations in predicting the quasinormal mode spectrum of a scalar field on a deformed Kerr...

💬 0 commentsarXiv:2601.09607v2PDF
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Posted in hep-ph · 2026-01-14 · Luigi Bellafronte, Sally Dawson, Clara Del Pio, Matthew Forslund, Pier Paolo Giardino

Higgs Decays at NLO in the SMEFT

The calculation of precise predictions for Higgs decays is a necessary ingredient for determining Higgs properties at the LHC and future colliders. We compute all two- and three-body Higgs decays at next-to-leading order (NLO) in both QCD and electroweak interactions using the dimension-6 Standard Model Effective Field Theory (SMEFT)....

💬 0 commentsarXiv:2601.09599v2PDF
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Posted in hep-ph · 2026-01-14 · Er-Hao Shang, Jun-Nan Lu, Gui-Jun Ding, Stephen F. King

New modular fixed point models and their phenomenological implications for JUNO, T2HK and DUNE

We perform a general analysis of minimal modular fixed point models based on two right-handed neutrinos (2RHNs) and three modular fixed points, and find that the only viable possibilities are based on modular $S_4'$ and $A_5$ symmetry. Such models are highly predictive, with neutrino masses and the lepton mixing mixing matrix being...

💬 0 commentsarXiv:2601.09598v2PDF
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Posted in quant-ph · 2026-01-14 · Manish Chaudhary

Dissipative State Engineering of Complex Entanglement with Markovian Dynamics

Highly multipartite entangled states play an important role in various quantum computing tasks. We investigate the dissipative generation of a complex entanglement structure as in a cluster state through engineered Markovian dynamics in the spin systems coupled via Ising interactions. Using the Lindblad master equation, we design a...

💬 0 commentsarXiv:2601.09597v1PDF
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Posted in physics.plasm-ph · 2026-01-14 · Thomas Grismayer, Fabrizio Del Gaudio, Luís O. Silva

Plasma wakes driven by Compton scattering: Non-linear regime and particle acceleration

We investigate plasma wake generation via Compton scattering from photon bursts, a non-ponderomotive process relevant when the photon wavelength is smaller than the interparticle distance but larger than the Compton wavelength. In this regime, electrons can reach relativistic velocities. We extend linear theory to the nonlinear...

💬 0 commentsarXiv:2601.09596v1PDF
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Posted in physics.chem-ph · 2026-01-14 · Sergio Suárez-Dou, Miguel Gallegos, Kyunghoon Han, Florian N. Brünig, Joshua T. Berryman, Alexandre Tkatchenko

Quantum-Accurate Conformational Stabilities and Vibrational Dynamics in Molecules and Proteins with Machine-Learned Force Fields

Biomolecular thermodynamics and spectroscopy depend on relative conformer energies, local curvatures, and collective dipole fluctuations on the potential-energy surface. Conventional molecular mechanics force fields enable large-scale simulations, but their fixed functional forms can misrepresent infrared intensities, mode character,...

💬 0 commentsarXiv:2601.09845v2PDF
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Posted in hep-ph · 2026-01-14 · Nils Hüsken, Eric S. Swanson, Adam Szczepaniak

On Dispersive and Nondispersive K-matrix Formalisms

The modeling of coupled-channel effects has become increasingly important due to the availability of highly precise data for a large variety of hadronic (re)scattering processes. The K-matrix is a powerful, yet comparatively simple, method to describe scattering amplitudes, including coupled-channel effects, with the aim to interpret...

💬 0 commentsarXiv:2601.09844v1PDF
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Posted in astro-ph.GA · 2026-01-14 · Simon Portegies Zwart, Arjen Doelman, Jelmer Sein

The formation of periodic three-body orbits for Newtonian systems

Braids are periodic solutions to the general N-body problem in gravitational dynamics. These solutions seem special and unique, but they may result from rather usual encounters between four bodies. We aim at understanding the existence of braids in the Galaxy by reverse engineering the interactions in which they formed. We simulate...

💬 0 commentsarXiv:2601.09843v2PDF
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Posted in astro-ph.EP · 2026-01-14 · Xiaochen Zheng, Zhuoya Cao, Shigeru Ida, Douglas N. C. Lin, Shude Mao

A Robust Launching Mechanism for Freely-Floating Planets from Host Stars with Close-in Planets

Secular perturbations from binary stars and distant massive planets can drive cold planets onto nearly parabolic orbits with pericenter passages extremely close to their host stars. Meanwhile, short-period super-Earths are frequently observed around nearby stars. Gravitational scattering between these two distinct populations can lead...

💬 0 commentsarXiv:2601.09835v2PDF
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Posted in hep-ph · 2026-01-14 · Guido D'Amico, Andrew A. Geraci, Nemanja Kaloper, Alexander Westphal

Very-High-Frequency Gravitational Waves from Multi-Monodromy Inflation

We show that in multi-stage axion monodromy inflation an interruption near the end of the penultimate stage can lead to a spike in the gravitational wave background. These gravitational waves are in the frequency range and with an amplitude accessible to proposed terrestrial detectors such as the Einstein Telescope, Cosmic Explorer,...

💬 0 commentsarXiv:2601.09834v1PDF
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Posted in physics.optics · 2026-01-14 · Joshua Chen, Sachin Vaidya, Simo Pajovic, Seou Choi, William Michaels, Louis Martin-Monier, Juejun Hu, Carol Cogswell, Charles Roques-Carmes, Marin Soljačić

Wavefront Engineering for Scintillation-Based Imaging

Recent research in nanophotonics for scintillation-based imaging has demonstrated promising improvements in scintillator performance. In parallel, advances in nanophotonics have enabled wavefront control through metasurfaces, a capability that has transformed fields such as microscopy by allowing tailored control of optical...

💬 0 commentsarXiv:2601.09830v1PDF
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Posted in physics.comp-ph · 2026-01-14 · Marc Boulé

RLC Parameters of a Two-Wire Line with the Finite Element Method

This tutorial paper shows how to compute the DC (or low-frequency) resistance, inductance and capacitance of a pair of parallel wires using the finite element method. A three-dimensional infinite domain (open boundary) modeling of electrostatic and magnetostatic fields is presented, along with the electrokinetic formulation for the...

💬 0 commentsarXiv:2601.09829v1PDF
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Posted in cond-mat.other · 2026-01-14 · Alan J. Hurd

Entropic Approach to Critical Materials Assessment

Most methodologies for materials criticality assessment score supply risk and societal importance. Market-based criteria offer quantitative measures for assessment. Here we develop a statistical approach based on a geologic entropy function in which flexible constraints, such as economic, national security related, or regulatory, can...

💬 0 commentsarXiv:2601.09827v1PDF