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arXiv preprints from January 1, 2026 through September 11, 2026 — 16:10:16 EST

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Posted in astro-ph.GA · 2026-07-21 · Youngmin Baek, Sree Oh, Sukyoung K. Yi, Scott M. Croom, Matthew Colless, Jesse van de Sande, Stefania Barsanti, Sam P. Vaughan

Morphology-spin connection in the SAMI Galaxy Survey

The spin parameter $λ_{\rm{R_e}}$ is a proxy for the specific stellar angular momentum of galaxies and is a useful metric for classifying kinematic morphology. This study aims to quantify the relative importance of galaxy properties in explaining $λ_{\rm{R_e}}$, using data from the Sydney-AAO Multi-object Integral-field spectrograph...

💬 0 commentsarXiv:2607.18654v1PDF
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Posted in physics.plasm-ph · 2026-07-21 · Ruimeng Hu, Qirui Peng, Xu Yang

Current-Sheet Formation in Electron Magnetohydrodynamics with Split Fractional Dissipation

Thin current sheets are central small-scale structures in electron magnetohydrodynamics (EMHD), closely associated with energy dissipation and fast magnetic reconnection at electron scales. We study their formation numerically in a $2\frac{1}{2}$-dimensional EMHD system on a periodic domain with split fractional dissipation, where the...

💬 0 commentsarXiv:2607.18648v1PDF
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Posted in astro-ph.HE · 2026-07-21 · Hong-Yi Zhang, Heng Bian, Zhao-Yu Zuo

Time-Domain Axion Searches with Magnetic White Dwarfs

Magnetic white dwarfs can convert photons into axions in their strong magnetic fields, with the conversion probability modulating the light curve as the star rotates. However, this observable is degenerate with intrinsic stellar variability if the background is modeled too simplistically. We develop a controlled background-degeneracy...

💬 0 commentsarXiv:2607.18647v1PDF
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Posted in q-bio.MN · 2026-07-21 · Momoko Amemiya, Ayaka Sakata

A Reexamination of Noise-Driven Robustness Evolution in Gene Regulatory Networks

Gene regulatory network (GRN) models are widely used to investigate gene-expression dynamics in biological systems. evolutionary GRN model proposed by Kaneko (2007), which investigated the relationship between robustness to nongenetic phenotypic noise and robustness to mutation. We explicitly reconstruct the simulation protocol by...

💬 0 commentsarXiv:2607.18645v1PDF
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Posted in quant-ph · 2026-07-21 · Xue-Na Zhu, Gui Bao, Zhi-Xiang Jin, Shao-Ming Fei, Tao Li

Monogamy inequalities of entanglement of assistance in $2\otimes 2\otimes d$ systems

The monogamy relations characterize the distribution of quantum correlations among the multipartite quantum systems. We study the monogamy relations of the entanglement of assistance in $2\otimes 2\otimes d$ systems. We present explicitly the relations satisfied by the concurrence, the tangle and the concurrence of assistance, which...

💬 0 commentsarXiv:2607.18643v1PDF
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Posted in gr-qc · 2026-07-21 · Tarun Kumar, Anand S. Sengupta

Stochastic template banks for GW searches using low-discrepancy sequences

Matched filtering remains the most sensitive method for detecting gravitational waves from compact binary coalescences. The efficiency of such searches depends on how well a discrete template bank covers the underlying parameter space. Conventional geometric, stochastic, and hybrid placement methods can lead to uneven coverage and...

💬 0 commentsarXiv:2607.18633v1PDF
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Posted in gr-qc · 2026-07-21 · Mohammad Reza Alipour, Mohammad Ali S. Afshar, Saeed Noori Gashti, Behnam Pourhassan, Jafar Sadeghi

Periodic Orbits and Gravitational Wave Signatures around the Bonanno--Reuter Regular Black Hole

Timelike geodesics, periodic orbits, and their associated gravitational-wave signatures are examined in the spacetime of a Bonanno--Reuter regular black hole, a geometry arising from Asymptotically Safe Gravity in which a running Newton coupling replaces the central singularity with a de Sitter core. The dimensionless parameter...

💬 0 commentsarXiv:2607.18627v1PDF
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Posted in nucl-th · 2026-07-21 · Myeong-Hwan Mun, Kyoungsu Heo, Jubin Park, Myung-Ki Cheoun, H. Sagawa

A common finite-density charge-symmetry-breaking response in mirror displacement energies and charge radii

Mirror charge radii can constrain neutron skins only if nuclear isospin-symmetry breaking beyond the Coulomb interaction is controlled. We present a differential Skyrme energy-density-functional analysis in which mirror displacement energies (MDEs) and mirror charge-radius differences are generated by the same class-III...

💬 0 commentsarXiv:2607.18621v1PDF
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Posted in physics.soc-ph · 2026-07-21 · Jian Liu, Dong Sun

Temporal-Causal Unity as an Operational Framework for Collective Dynamics: Causal-Progress Clocks, Synchronization, and Polarization

This paper develops temporal-causal unity (TCU), a framework connecting a process-philosophical thesis -- time is the ordered unfolding of causal change -- to an operational model of cognitive and social dynamics. The framework deliberately separates three claims: an interpretive thesis about becoming, a measurable causal-progress...

💬 0 commentsarXiv:2607.18620v1PDF
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Posted in quant-ph · 2026-07-21 · Mikael P. Backlund

Spontaneous optical emission of a randomly oriented chiral quantum source

We derive the form of the one-photon state of the electromagnetic field resulting from spontaneous optical emission of a randomly oriented chiral quantum source, including electric dipole, magnetic dipole, and electric quadrupole contributions to the radiation. We describe how spatial coherence in the emission can be exploited to...

💬 0 commentsarXiv:2607.18617v1PDF
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Posted in physics.optics · 2026-07-21 · Zhenhua Guo, Sushant Kumar, Xue Dong, Yi Zhang, Jiewei Xiang, Arunima Nauriyal, Junchi Zhang, Elias Veilleux, Jaime Cardenas, William H. Renninger

High-Energy Microresonator Soliton Generation

Kerr resonators generate stable frequency combs in a compact platform with applications in coherent communications, sensing, quantum information processing, and astrophysics. Ultrashort pulses can be generated, moreover, with a wavelength and repetition rate flexibility inaccessible by traditional mode-locked lasers, which is...

💬 0 commentsarXiv:2607.18611v1PDF
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Posted in physics.comp-ph · 2026-07-21 · Veljko Lipovac, Eirik Keilegavlen, Inga Berre

Isochoric thermodynamic preconditioning for resolving mechanically induced phase change in fractured porous media

Rapid pore-volume changes can trigger phase change on timescales shorter than characteristic transport times and may therefore be skipped by conventional nonlinear solves and adaptive time stepping. We present a persistent-variable framework for transport in fractured porous media, introducing specific volume as an independent...

💬 0 commentsarXiv:2607.18608v1PDF
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Posted in quant-ph · 2026-07-21 · Armen Karakashian, Itay Hen

Dismantling the Stoquastic Dichotomy

We challenge the notion that a stoquastic binary governs fundamental computational boundaries in quantum computing and classical simulation of quantum systems. We argue that vanishing geometric phase (VGP), a geometric condition on the Hamiltonian's transition graph, more adequately captures these boundaries. To distinguish VGP from...

💬 0 commentsarXiv:2607.18596v1PDF
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Posted in astro-ph.SR · 2026-07-21 · Izumi Hachisu, Mariko Kato

A multiwavelength light curve analysis of the very fast nova V1723 Sco

We have analyzed multiwavelength light curves of the very fast nova V1723 Sco, based on our fully self-consistent nova explosion models. The time-stretching method gives the distance modulus in the $V$ band of $(m-M)_V = 15.3\pm 0.2$. Then the absolute $V$ magnitude reaches $M_{V,\rm max}= m_{V, \rm max} - (m-M)_V= 6.77 - 15.3\pm 0.2...

💬 0 commentsarXiv:2607.18595v1PDF
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Posted in cond-mat.mtrl-sci · 2026-07-21 · Prathami Divakar Kamath, Francesco Tavani, Alin Marin Elena, Théo Jaffrelot Inizan, Yen-hsu Lin, Jian Yin, Wenqian Xu, Omar M. Yaghi, Kristin A. Persson

Data-driven Design of Metal-Organic Frameworks with Tunable Negative Thermal Expansion

Materials with negative thermal expansion (NTE) are essential for applications requiring precise control of thermal expansion. Owing to their exceptional chemical tunability, flexible architectures, and low-energy lattice vibrations, metal-organic frameworks (MOFs) represent a rich platform for exploring NTE. However, uncovering the...

💬 0 commentsarXiv:2607.18594v1PDF
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Posted in cond-mat.supr-con · 2026-07-20 · Malcolm Durkin, Emily Waite, Taylor L. Hughes, Nadya Mason

Domain wall motion in a polycrystalline vortex lattice

Disorder fundamentally reshapes how crystalline systems respond to external forces, yet it remains unclear whether disorder drives interacting lattices toward glassy states or instead fragments them into domains separated by mobile interfaces. Here, we investigate vortex motion in superconducting island arrays, where disorder is...

💬 0 commentsarXiv:2607.18592v1PDF
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Posted in cond-mat.mtrl-sci · 2026-07-20 · Lara Goncebat, Rodrigo Echeveste, Matías Gerard, Frederik Tielens, Gustavo Belletti, Paola Quaino

GQD-AdsNet: Graph Neural Networks Unlock Rapid Exploration of Transition Metal Adsorption on Graphene Quantum Dots

In recent years, interest in single-atom catalysts supported on carbon-based structures has grown considerably due to their high catalytic activity and efficient uses of metal atoms. However, the design and characterization of these materials through first-principles calculations are computationally expensive, limiting the exploration...

💬 0 commentsarXiv:2607.18591v1PDF
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Posted in cond-mat.mtrl-sci · 2026-07-20 · CJ Sturgill, Roya Rajabi, Md Abdullah Al Muhit, Hans-Conrad zur Loye, Morgan Stefik

Battery Material Comparisons Should Refocus on Diffusivity with Best Practices

The continuous demand for improved batteries motivates the discovery and advancement of materials with improved transport. Ionic diffusivity is the relevant material property where its measurement depends on accurate assessment of the active material length-scale, generally from the mass-specific surface area. In this perspective, we...

💬 0 commentsarXiv:2607.18590v1PDF
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Posted in physics.ed-ph · 2026-07-20 · Bilas Paul

P-A.I.R.: A Structured AI-Replication Framework for Active Learning in Introductory Physics

The growing use of generative AI tools among students raises an important pedagogical question: how can AI be structured to promote active learning rather than passive answer-seeking? This study introduces the Physics AI-Replication (P-A.I.R.) framework, in which students identify challenging problems, use AI to explain underlying...

💬 0 commentsarXiv:2607.18587v1PDF
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Posted in cond-mat.supr-con · 2026-07-20 · Alexander Bartenev, Roman Kolodka, Larry Theran, Ki-Tae Eom, Jong-Hoon Kang, Jason Kawasaki, Chang-Beom Eom, Sergiy Lysenko

Acoustic Phonon Dynamics in Co-Doped BaFe$_2$As$_2$ Thin Film

Pump-probe reflectivity reveals coherent acoustic oscillations at 33 and 8.2 GHz in a Ba(Fe$_{0.92}$Co$_{0.08}$)$_2$As$_2$ thin film. The acoustic response was analyzed using a modified logistic-function model, suggesting a temporal redistribution of coherent acoustic energy consistent with anharmonic decay of the higher-frequency...

💬 0 commentsarXiv:2607.18583v1PDF
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Posted in hep-ph · 2026-07-20 · Shubhalaxmi Rath, Nicolás A. Neill

Transport phenomena and observables associated with viscous properties of an anisotropic hot QCD medium at finite baryon asymmetry

We have studied the transport phenomena and observables associated with viscous properties of a baryon asymmetric hot QCD medium in the presence of a weak-momentum anisotropy arising due to the asymptotic expansion of the matter in the initial stages of ultrarelativistic heavy-ion collisions. This study facilitates the understanding...

💬 0 commentsarXiv:2607.18581v1PDF
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Posted in quant-ph · 2026-07-20 · Steven K. Pampel, Gur Lubin, Dawson P. Hewatt, Conall McCabe, Jaeyong Hwang, Sean R. Muleady, Tianrui Xu, Ana Maria Rey, Cindy A. Regal

Motional Kerr-Cat States of an Atom in an Optical Tweezer

Schrödinger cat states - quantum superpositions of classically or macroscopically distinct states - constitute a powerful resource for quantum computing, enhanced metrology, and probing coherence on large scales. Encoding such states in the phase space of an oscillator requires a nonlinearity, typically inherited from an auxiliary...

💬 0 commentsarXiv:2607.18579v1PDF
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Posted in astro-ph.SR · 2026-07-20 · Nethra Rajavel, Dean M. Townsley, Ken J. Shen

Stream-Driven Ignition of a Realistic Undisturbed Helium Shell on a White Dwarf

The dynamically driven double degenerate double detonation (D$^6$) model has emerged as a promising progenitor scenario for Type Ia supernovae. In this model, a carbon-oxygen white dwarf (WD) in a close double WD binary undergoes a double-detonation triggered by dynamical mass transfer from its companion. The mass transfer stream...

💬 0 commentsarXiv:2607.18572v1PDF
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Posted in quant-ph · 2026-07-20 · Wenqi Tong, Spencer J Walsh, H. Alaeian, F. Robicheaux

Nonlinear Optics Mediated by Chiral Waveguide QED: Generation of Momentum-anticorrelated Photon Pairs

In recent years, chiral quantum optics has emerged as an active research area due to the promising applications in quantum information processing as well as nonlinear optics. We present results on the properties of the incoherent component of the transmitted light after transmons chirally coupled to a waveguide. The well-known...

💬 0 commentsarXiv:2607.18562v1PDF
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Posted in physics.plasm-ph · 2026-07-20 · B. Lomanowski, T. Eich, J. D. Lore, J. -S. Park, T. Body, P. Stangeby

The power exhaust constrained SPARC separatrix operational space

In this work we extrapolate the separatrix operational space (SepOS) projections to SPARC and introduce detachment access criteria, thus formulating the combined power exhaust constrained SepOS (i.e., PE-SepOS) to evaluate integrated power exhaust solutions at scale. Through the interpretation of SPARC SOLPS-ITER datasets and...

💬 0 commentsarXiv:2607.18558v1PDF