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Physics

arXiv preprints from January 1, 2026 through September 10, 2026 — 17:50:04 EST

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Posted in cond-mat.str-el · 2026-01-07 · J. Sourd, B. Vignolle, E. Gaudin, S. Burdin, S. Tencé

Superconductivity, Kondo physics and magnetic order: Tuning the groundstate in the La$_{1-x}$Ce$_x$FeSiH solid solution through the interplay between $3d$ and $4f$ correlated electrons

We report a study of the La$_{1-x}$Ce$_x$FeSiH solid solution ($0 \leq x \leq 1$), a family of intermetallic hydrides of ZrCuSiAs-type structure, with space group $P4/nmm$. For low cerium concentrations $x \leq 0.20$, we observe the presence of superconductivity, which originates from the correlated $3d$ electrons of iron. The...

💬 0 commentsarXiv:2601.04097v1PDF
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Posted in physics.soc-ph · 2026-01-07 · Rudraksh Sharma, Ravi Katukam, Arjun Nagulapally

Bridging the Linear-Quadratic Gap: A Quantum-Classical Hybrid Approach to Robust Supply Chain Design

The design of supply chain networks in densely populated urban logistics systems faces a timely dilemma: the traditional optimisation approaches are effective to maximise the level of demand perfusion, but they are limited to embracing large expenses in overlapping the facilities and cannibalisation in the market. When tested on a...

💬 0 commentsarXiv:2601.04095v2PDF
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Posted in quant-ph · 2026-01-07 · Peng Guo, Paul LeVan, Frank X. Lee, Yong Zhao

Scattering phase shift in quantum mechanics on quantum computers

We investigate the feasibility of extracting infinite volume scattering phase shift on quantum computers in a simple one-dimensional quantum mechanical model, using the formalism established in Ref.~\cite{Guo:2023ecc} that relates the integrated correlation functions (ICF) for a trapped system to the infinite volume scattering phase...

💬 0 commentsarXiv:2601.04092v2PDF
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Posted in astro-ph.SR · 2026-01-07 · Asako Sato, Anaëlle Maury, Josep M. Girart, Andrea Bracco, Patrick Hennebelle, Qizhou Zhang, Valeska Valdivia

Dissecting the dust distribution and polarization around two B213 young stellar objects with ALMA

The earliest stages of disk formation and dust evolution during the protostellar phase remain poorly constrained. Millimeter dust emission and its polarization provide key insights into the physical processes and material distribution at the envelope-disk interface. We present ALMA polarimetric observations at 1.4 mm and 3 mm of two...

💬 0 commentsarXiv:2601.04091v1PDF
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Posted in quant-ph · 2026-01-07 · Simon J. K. Lang, Ignaz Eisele, Alwin Maiwald, Emir Music, Luis Schwarzenbach, Carla Moran-Guizan, Johannes Weber, Daniela Zahn, Thomas Mayer, Rui N. Pereira, Christoph Kutter

Surface Optimization of Superconducting Aluminum Resonators for Robust Quantum Device Fabrication

Aluminum (Al) remains the central material for superconducting qubits, and considerable effort has been devoted to optimizing its deposition and patterning for quantum devices. However, post-processing strategies focused on oxide removal of niobium (Nb) and tantalum (Ta) -based resonators using buffered oxide etch (BOE), which can not...

💬 0 commentsarXiv:2601.04082v3PDF
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Posted in hep-th · 2026-01-07 · Maciej Dunajski

Integrable Systems

These notes are based on lecture courses I gave to third year mathematics students at Cambridge. They could form a basis of an elementary one--term lecture course on integrable systems covering the Arnold-Liouville theorem, inverse scattering transform, Hamiltonian methods in soliton theory and Lie point symmetries. No knowledge...

💬 0 commentsarXiv:2601.04077v1PDF
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Posted in physics.soc-ph · 2026-01-07 · Hanna Bartel, Martin Burger, Marie-Therese Wolfram

Multi-Dimensional Opinion Formation

In this paper we propose and investigate a multi-dimensional opinion dynamics model where people are characterised by both opinions and importance weights across these opinions. Opinion changes occur through binary interactions, with a novel coupling mechanism: the change in one topic depends on the weighted similarity across the full...

💬 0 commentsarXiv:2601.04074v2PDF
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Posted in cond-mat.supr-con · 2026-01-07 · Sasan Razmkhah, Douglas Scott Holmes, Massoud Pedram

Inductorless Fast Phase Logic: Enabling Two-Order-of-Magnitude Density Scaling for Superconductor VLSI

Fast phase logic (FPL) is a novel digital superconductor electronic (SCE) logic family that employs multiple junction types, including switching 0-Josephson junctions (0-JJs), non-switching 0-JJ stacks, and $π$-JJs. FPL enables flexible, automatable cell layouts, faster pulse propagation, reduced bias current via phase-shifting...

💬 0 commentsarXiv:2601.04363v2PDF
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Posted in cond-mat.stat-mech · 2026-01-07 · Alberto Rolandi, Paolo Abiuso, Patryk Lipka-Bartosik, Maxwell Aifer, Patrick J. Coles, Martí Perarnau-Llobet

Energy-Time-Accuracy Tradeoffs in Thermodynamic Computing

In the paradigm of thermodynamic computing, instead of behaving deterministically, hardware undergoes a stochastic process in order to sample from a distribution of interest. While it has been hypothesized that thermodynamic computers may achieve better energy efficiency and performance, a theoretical characterization of the resource...

💬 0 commentsarXiv:2601.04358v1PDF
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Posted in astro-ph.HE · 2026-01-07 · Yu-Dong Nie, Yong Shao, Jian-Guo He, Ze-Lin Wei, Shi-Jie Gao, Xiao-Jie Xu, Xiang-Dong Li

Formation of Recycled Pulsars in Common Envelope Binaries

We present a systematic study of the evolution of low- and intermediate-mass X-ray binaries (L/IMXBs) consisting of a $1.4\,M_{\odot}$ neutron star (NS) and a donor star of mass $1-8\,M_{\odot}$. Using grids of detailed MESA simulations, we show that for donor masses of $2-8\,M_{\odot}$, mass transfer may be dynamically unstable,...

💬 0 commentsarXiv:2601.04355v1PDF
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Posted in physics.optics · 2026-01-07 · Zabir Ahmed, Xiang Li, Kanika Sarna, Harshvardhan Gupta, Vishal Jain, Maysamreza Chamanzar

Ultra-sensitive graphene-based electro-optic sensors for optically-multiplexed neural recording

Large-scale neural recording with high spatio-temporal resolution is essential for understanding information processing in brain, yet current neural interfaces fall far short of comprehensively capturing brain activity due to extremely high neuronal density and limited scalability. Although recent advances have miniaturized neural...

💬 0 commentsarXiv:2601.04354v1PDF
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Posted in astro-ph.IM · 2026-01-07 · Yakubu Mu'allim, J. O. Vwavware, A. Ohwofosirai

The Impact of Robotic Telescopes on Time-Domain Astronomy

The field of time-domain astronomy has experienced unprecedented growth due to the increasing deployment of robotic telescopes capable of autonomous, round-the-clock sky monitoring. These instruments have revolutionized the detection and characterization of transient phenomena such as supernovae, gamma-ray bursts, variable stars, and...

💬 0 commentsarXiv:2601.04347v1PDF
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Posted in physics.class-ph · 2026-01-07 · Joseph West

N-body Systems with Linear Wind Resistance: Analytic Solutions

The attractive and repulsive linear Hookean form of gravity is known to allow for analytic solutions to N-body systems for arbitrary masses and initial conditions. This linear system is very well suited for use in the advanced undergraduate classroom with the position of every particle rj(t) known analytically in terms of only sine,...

💬 0 commentsarXiv:2601.08220v1PDF
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Posted in nucl-ex · 2026-01-07 · M. Spieker, L. A. Riley, M. Heinze, A. L. Conley, B. Kelly, P. D. Cottle, R. Aggarwal, S. Ajayi, L. T. Baby, S. Baker, I. Conroy, I. B. D'Amato, J. Esparza, S. Genty, I. Hay, K. W. Kemper, M. I. Khawaja, P. S. Kielb, A. N. Kuchera, E. Lopez-Saavedra, A. B. Morelock, J. Piekarewicz, A. Sandrik, V. Sitaraman, E. Temanson, C. Wibisono, I. Wiedenhoever

Experimental study of $^{53}$Cr via the $(d,pγ)$ reaction

Excited states in $^{53}$Cr were studied via the $^{52}$Cr$(d,pγ)$ reaction up to the neutron-separation threshold. Proton-$γ$ angular correlations and $γ$ decay branching ratios were measured in particle-$γ$ coincidences between the Super-Enge Split-Pole Spectrograph (SE-SPS) and CeBr$_3$ Array (CeBrA) demonstrator of the John D. Fox...

💬 0 commentsarXiv:2601.04346v1PDF
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Posted in cond-mat.quant-gas · 2026-01-07 · Simone Orlando, Guo-Xian Su, Bing Yang, Jad C. Halimeh

Scalable cold-atom quantum simulator of a $3+1$D U$(1)$ lattice gauge theory with dynamical matter

The stated overarching goal of the highly active field of quantum simulation of high-energy physics (HEP) is to achieve the capability to study \textit{ab-initio} real-time microscopic dynamics of $3+1$D quantum chromodynamics (QCD). However, existing experimental realizations and theoretical proposals for future ones have remained...

💬 0 commentsarXiv:2601.04345v1PDF
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Posted in astro-ph.GA · 2026-01-07 · Sho Ebihara, Michiko S. Fujii, Takayuki R. Saitoh, Yutaka Hirai, Hideyuki Umeda, Yuki Isobe, Chris Nagele

Nitrogen enhancement of GN-z11 by metal pollution from supermassive stars

Spectroscopic observations by the James Webb Space Telescope (JWST) have revealed young, compact, high-redshift ($z$) galaxies with high nitrogen-to-oxygen (N/O) ratios. GN-z11 at z=10.6 is one of these galaxies. One possible scenario for such a high N/O ratio is pollution from supermassive stars (SMSs), from which stellar winds are...

💬 0 commentsarXiv:2601.04344v3PDF
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Posted in physics.atom-ph · 2026-01-07 · Maen Salman, Jean-Philippe Karr

Photodetachment energy of negative hydrogen ions

We report a high-precision calculation of the photodetachment energy of the hydrogen anion \mathrm{H}^{-}. The nonrelativistic bound-state energy is obtained using an exact three-body approach, and supplemented by leading relativistic, quantum-electrodynamic, finite-nuclear-size, and hyperfine corrections. Our result is...

💬 0 commentsarXiv:2601.04341v2PDF
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Posted in astro-ph.CO · 2026-01-07 · Zihan Wang

Dark QCD Origin of the NANOGrav Signal and Self-Interacting Dark Matter

The NANOGrav 15-year stochastic gravitational wave background (SGWB) amplitude $A_{\rm yr} \approx 2.4 \times 10^{-15}$ lies at the upper edge of population synthesis predictions for supermassive black hole binaries (SMBHBs), motivating exploration of additional cosmological sources. We present a phenomenological framework based on an...

💬 0 commentsarXiv:2601.04340v2PDF
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Posted in cond-mat.stat-mech · 2026-01-07 · Pierre Nazé

Unifying Kibble-Zurek Mechanism in Weakly Driven Processes

A description of the Kibble-Zurek mechanism with linear response theory has been done previously, but ad hoc hypotheses were used, like the use of the rate-dependent impulse window via the Zurek equation in the context of no driving in the relaxation time. In this work, I present a new framework where such hypotheses are unnecessary,...

💬 0 commentsarXiv:2601.04337v1PDF
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Posted in hep-th · 2026-01-07 · Giovani Peruzzo

Local gauge-invariant vector operators in the adjoint $SU(2)$ Higgs model

In this work, we scrutinize local gauge-invariant vector operators of dimension four in the adjoint $SU(2)$ Higgs model, which are candidates for interpolating fields of the fundamental excitations of the model due to the so-called FMS mechanism. We use the equations of motion and the properties of the BRST operator to derive a Ward...

💬 0 commentsarXiv:2601.04333v3PDF
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Posted in hep-ph · 2026-01-07 · L. X. Gutiérrez-Guerrero, M. A. Ramírez-Garrido, M. A. Pérez de León, R. J. Hernández-Pinto

Unified analysis of screening masses for vector and axial-vector mesons and their diquark partners in the Contact Interaction model

We present a comprehensive study of the screening masses of vector and axial-vector mesons and their corresponding diquark partners within a symmetry-preserving vector-vector contact interaction approach. Our analysis includes mesons and diquarks composed of both light and heavy quarks, providing a unified description of their thermal...

💬 0 commentsarXiv:2601.04332v2PDF
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Posted in astro-ph.SR · 2026-01-07 · Sudip Mandal, Cosima Breu, Hardi Peter

Polarization of decayless kink oscillations in a 3D MHD coronal loop model

Decayless kink oscillations are frequently observed in solar coronal loops and are considered potential contributors to coronal heating. Despite the ubiquity of this wave phenomenon, its driving mechanism remains unclear. Studies to derive the polarization state of these oscillations, which would be a key to identifying the drivers,...

💬 0 commentsarXiv:2601.04331v1PDF
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Posted in hep-th · 2026-01-07 · Can Onur Akyuz, Erick Arguello Cruz, Ludo Fraser-Taliente, Grigory Tarnopolsky

Four-point function of the complex Sachdev-Ye-Kitaev model at finite chemical potential

It is known that, for a range of chemical potentials, the infrared behavior of the complex Sachdev-Ye-Kitaev (cSYK) model is governed by a 1D Nearly Conformal Field Theory (NCFT$_{1}$), thereby realizing a continuous line of NCFTs. A finite chemical potential $μ$ introduces an asymmetry parameter $\mathscr{E}$ into the cSYK fermion...

💬 0 commentsarXiv:2601.04330v1PDF
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Posted in hep-th · 2026-01-07 · Mathew Calkins, Monica Pate

Multi-particle Celestial Operator Product Expansions from the Boundary

In celestial holography, scattering particles in four-dimensional asymptotically flat spacetimes are dual to conformal primary field operators on the celestial sphere. Multi-particle celestial operators can be formed from regularized coincident limits of single-particle celestial operators. The singular terms in the operator product...

💬 0 commentsarXiv:2601.04329v1PDF
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Posted in physics.geo-ph · 2026-01-07 · Rafael da Silva Garcia, Francisco Marcio Barboza

Statistical Analysis of the Depth-Velocity Trade-off in Reflection Seismology

Seismic interpretation is strongly influenced by the relationship between subsurface layer depth and velocity. Small variations in these parameters can produce almost identical responses, characterizing the depth-velocity trade-off phenomenon. This work proposes a statistical and computational approach to evaluate the extent of this...

💬 0 commentsarXiv:2601.04328v1PDF