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arXiv preprints from January 1, 2026 through July 20, 2026 — 12:10:35 EST

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Posted in physics.flu-dyn · 2026-01-13 · Manuel Noseda, Bernardo Luciano Español, Pablo Daniel Mininni, Pablo Javier Cobelli

Chirality tomography: measuring local helicity from trajectory linking

We present the first three-dimensional helicity maps of fully developed turbulence obtained through chirality tomography, a Lagrangian voxel-based method that reconstructs helicity density from particle trajectories. Our approach builds on an empirically established relation between helicity and trajectory linking, converting local...

💬 0 commentsarXiv:2601.08569v1PDF
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Posted in quant-ph · 2026-01-13 · K. Sai Mineesh Reddy, Navin Kashyap

Asymptotically good CSS codes that realize the logical transversal Clifford group fault-tolerantly

This paper introduces a framework for constructing Calderbank-Shor-Steane (CSS) codes that support fault-tolerant logical transversal $Z$-rotations. Using this framework, we obtain asymptotically good CSS codes that fault-tolerantly realize the logical transversal Clifford group (i.e., transversal single-qubit Clifford gates are...

💬 0 commentsarXiv:2601.08568v2PDF
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Posted in hep-ph · 2026-01-13 · Jun Jiang, Cong-Feng Qiao, Yu-Han Zhao

Where to find $X(17)$?

The Atomki anomaly puts forward the hypothesis of an $X(17)$ particle to explain its observation. Utilizing experimental results from the Atomki experiments, measurements of the electron's anomalous magnetic moment, beam dump experiments, the KLOE-2 experiment, the PADME experiment, and the parity-violating Møller scattering...

💬 0 commentsarXiv:2601.08567v5PDF
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Posted in astro-ph.GA · 2026-01-13 · Qian Wang, Aigen Li, Xuejuan Yang

On the Interstellar Extinction Curve toward HD 93222, A Sightline with an Exceedingly Narrow 2175 Angstrom Extinction Bump

The 2175 Angstrom extinction bump, the most prominent spectral feature superimposed on the interstellar extinction curve, is widely seen in the interstellar medium (ISM) of the Milky Way and external galaxies, both near and far. While its central wavelength is remarkably stable and independent with environment, its width shows...

💬 0 commentsarXiv:2601.08563v1PDF
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Posted in quant-ph · 2026-01-13 · Jhordan Santiago, Petr Steindl

Nonclassicality of multi-photon-added cat states

Multi-photon-added cat states are constructed by repeatedly applying the creation operator to a cat state. We study in detail their photon-number distribution, $Q$ parameter, squeezing properties, and Wigner function. We show that photon addition induces a $π$ phase shift in the original parity configuration whenever an odd number of...

💬 0 commentsarXiv:2601.08894v1PDF
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Posted in physics.chem-ph · 2026-01-13 · Luis Bonah, Marie-Aline Martin-Drumel, Olivier Pirali, Francesca Tonolo, Michela Nonne, Mattia Melosso, Luca Bizzocchi, Cristina Puzzarini, Jean-Claude Guillemin, Christian P. Endres, Stephan Schlemmer, Sven Thorwirth

High-Resolution Infrared Spectroscopy and ASAP Analysis of Cyclopentadiene: The Vibrational Modes below 860 cm$^{-1}$ and the $ν_{21}$ Mode at 961 cm$^{-1}$

The spectroscopic fingerprints of vibrationally excited states of astronomical molecules are interesting for multiple reasons. They are excellent temperature probes of the corresponding astronomical regions and are thought to be the origin of many unknown lines in astronomical survey spectra. Rovibrational spectra provide accurate...

💬 0 commentsarXiv:2601.08560v1PDF
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Posted in astro-ph.SR · 2026-01-13 · A. R. G. do Brito do Vale, K. Mužić, H. Bouy, V. Almendros-Abad, A. Bayo, D. Capela, A. Scholz, A. Bik, G. Suárez, L. Cieza, K. Peña Ramírez, E. Bertin, R. Schödel

Substellar population of the young massive cluster RCW 36 in Vela

The initial mass function (IMF) is a cornerstone of star formation studies, yet its universality remains debated. We investigate the IMF in the young massive cluster RCW 36, located in the Vela Molecular Ridge and comparable to the Orion Nebula Cluster in stellar density. Our goal is to build the most complete census of RCW 36 and...

💬 0 commentsarXiv:2601.08555v1PDF
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Posted in cond-mat.str-el · 2026-01-13 · Tu Hong, Kun Chen, Xiao Yan Xu

Linear Canonical-Ensemble Quantum Monte Carlo: From Dilute Fermi Gas to Flat-Band Ferromagnetism

We present a finite-temperature canonical-ensemble determinant quantum Monte Carlo algorithm that enforces an exact fermion number and enables stable simulations of correlated lattice fermions. We propose a stabilized QR update that reduces the computational complexity from standard cubic scaling $O(βN^3)$ to linear scaling $O(βN...

💬 0 commentsarXiv:2601.08552v2PDF
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Posted in astro-ph.CO · 2026-01-13 · Nilanjana Bagchi Aurpa, Abha Dev Habib, Nisha Rani

Reconstructing Gamma Ray Burst Energy Relations with Observational H(z) data in Neural Network Framework

Gamma-ray bursts (GRBs) offer a powerful probe of the cosmic expansion history far beyond the redshift range accessible to Type Ia supernovae. However, the study of cosmological models using GRBs is hindered by the circularity problem, which arises from assuming a fiducial cosmological model during GRB luminosity distance calibration....

💬 0 commentsarXiv:2601.08550v2PDF
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Posted in math-ph · 2026-01-13 · Almudena del Pilar Márquez, Elena Recio, María Luz Gandarias

Conservation laws and exact solutions of a nonlinear acoustics equation by classical symmetry reduction

Symmetries and conservation laws are studied for a generalized Westervelt equation which is a nonlinear partial differential equation modelling the propagation of sound waves in a compressible medium. This nonlinear wave equation is widely used in nonlinear acoustics and it is especially important in biomedical applications such as...

💬 0 commentsarXiv:2601.08548v2PDF
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Posted in cond-mat.soft · 2026-01-13 · Fabrizio Camerin, Marco Polimeni, Letizia Tavagnacco, Jeffrey C. Everts, Szilard Saringer, Alessandro Gulotta, Nicholas Skar-Gislinge, Anna Stradner, Emanuela Zaccarelli, Peter Schurtenberger

Beyond uniform screening: electrostatic heterogeneity dictates solution structure of complex macromolecules

The complexity of biomolecular interactions necessitates advanced methodologies to accurately capture their behavior in solution. In this work, we focus on monoclonal antibodies and adopt a multi-scale coarse-graining strategy for their modeling, with particular emphasis on the role of electrostatic interactions. Using scattering...

💬 0 commentsarXiv:2601.08544v1PDF
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Posted in hep-th · 2026-01-13 · Atsushi Nakamula, Genki Sumiyama

Topology of Calorons Re-examined

We reconsider the detailed structure of the topological character of the instantons in pure Yang-Mills theory on $S^1\times\mathbb{R}^3$, so-called calorons. The claim is that the standard formula for the topological character, the second Chern number, requires some modification through analytic consideration. For concreteness, we...

💬 0 commentsarXiv:2601.08543v1PDF
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Posted in astro-ph.HE · 2026-01-13 · D. S. Pillay, V. Venkatraman Krishnan, David J. Champion, P. C. C. Freire, M. Kramer, L. Guillemot, M. Bailes, A. Corongiu, M. Geyer, J. Singha, R. M. Shannon, G. Theureau, I. Cognard, M. J. Keith, B. W. Stappers, J. Antoniadis, K. Liu, G. M. Shaifullah

Radio timing constraints on the orbital orientation and component masses of PSR J1455$-$3330

PSR J1455$-$3330 is a $\sim$7.98 ms pulsar in a $\sim$76.17 day nearly circular orbit with a white dwarf companion. In this work, we combine the available Lovell, Nançay decimetric Radio Telescope, Green Bank, and MeerKAT pulsar timing data spanning $\sim$ 30 years to measure the kinematic and relativistic effects of PSR J1455$-$3330...

💬 0 commentsarXiv:2601.08541v1PDF
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Posted in quant-ph · 2026-01-13 · Viktor Khinevich, Wataru Mizukami

Symmetry-Adapted State Preparation for Quantum Chemistry on Fault-Tolerant Quantum Computers

We present systematic and resource-efficient constructions of continuous symmetry projectors, particularly $U(1)$ particle number and $SU(2)$ total spin, tailored for fault-tolerant quantum computations. Our approach employs a linear combination of unitaries (LCU) as well as generalized quantum signal processing (GQSP and GQSVT) to...

💬 0 commentsarXiv:2601.08533v1PDF
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Posted in physics.ins-det · 2026-01-13 · Leonardo Pesce, Alessio Ludovico De Santis, Martino Calvo, Matteo Cappelli, Usasi Chowdhury, Angelo Cruciani, Giorgio Del Castello, Daniele Delicato, Matteo Folcarelli, Matteo del Gallo Roccagiovine, Alessandro Monfardini, Davide Quaranta, Marco Vignati

Enhanced Athermal Phonon Responsivity in a Kinetic Inductance Detector with Integrated Phonon Collectors

Cryogenic phonon detectors are adopted in light dark matter searches and coherent elastic neutrino-nucleus scattering experiments as they can achieve low energy thresholds. The phonon mediated sensing of silicon particle absorbers has already been proved with Kinetic Inductance Detectors (KIDs), acting both as sensors and athermal...

💬 0 commentsarXiv:2601.08532v3PDF
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Posted in astro-ph.CO · 2026-01-13 · Richard Stiskalek, Harry Desmond, Stuart McAlpine, Guilhem Lavaux, Jens Jasche, Michael J. Hudson

Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate

We revisit the Great Attractor using the Manticore-Local suite of digital twins of the nearby Universe. The Great Attractor concept has been proposed as an answer to three distinct questions: what sources the Local Group velocity in the cosmic microwave background frame, where present-day velocity streamlines converge, and where the...

💬 0 commentsarXiv:2601.08524v2PDF
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Posted in physics.app-ph · 2026-01-13 · Nguyen H. Ngo, Weijie Gao, Masayuki Fujita

Advances in All-Silicon Waveguides for Terahertz Integration

In chip-to-chip communication, terahertz waves provide a promising approach to achieve high data capacity with improved energy efficiency, effectively bridging the gap between electrical and optical domains. By realizing this potential, all-dielectric waveguides have emerged as high-speed interconnects, offering broad bandwidth and...

💬 0 commentsarXiv:2601.08515v1PDF
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Posted in astro-ph.SR · 2026-01-13 · Chen Wang, Mike Y. M. Lau, Xiang-Dong Li, Norbert Langer, Selma E. de Mink, Ruggero Valli, Stephen Justham, Xiao-Tian Xu, Jakub Klencki, Taeho Ryu

Thermal-timescale accretion does not always yield critical rotation in mass gainers

Binary evolution plays a central role in producing rapidly rotating stars. Previous studies have shown that mass gainers in binaries can reach critical rotation after accreting only modest amounts of material, particularly during thermal-timescale Case B mass transfer, where tidal spin-down is ineffective due to wide orbits. However,...

💬 0 commentsarXiv:2601.08508v1PDF
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Posted in astro-ph.EP · 2026-01-13 · S. Banerjee, R. K. Choudhary, K. R. Tripathi, T. Imamura, H. Ando

On the estimation of Sulfuric Acid Vapor concentrations below the Venus cloud deck using the Akatsuki Radio Science Experiment

We report new constraints on the vertical distribution of sulfuric acid vapor in the Venusian atmosphere, derived from a refined analysis of radio occultation (RO) data. The method estimates the power spectral density (PSD) of the received signal to recover both the signal intensity and the Doppler shift. The received signal power is...

💬 0 commentsarXiv:2601.08507v1PDF
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Posted in astro-ph.CO · 2026-01-13 · Ósmar Rodríguez, Alejandro Clocchiatti

A new magnitude--redshift relation based on Type Ia supernovae

We present a new empirical relation between the standardized magnitude ($m$) of Type Ia supernovae (SNe Ia) and redshift ($z$). Using Pantheon+ and DES-SN5YR, we find a negative linear correlation between $m-5\log(z(1+z))$ and $z$, implying that their magnitude--redshift relation can be parametrized with just two parameters: an...

💬 0 commentsarXiv:2601.08505v2PDF
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Posted in quant-ph · 2026-01-13 · Francisco Romão, Daniel Vonk, Emmanuil Giortamis, Dennis Sprokholt, Pramod Bhatotia

MultiQ: Multi-Programming Neutral Atom Quantum Architectures

Neutral atom Quantum Processing Units (QPUs) are emerging as a popular quantum computing technology due to their large qubit counts and flexible connectivity. However, performance challenges arise as large circuits experience significant fidelity drops, while small circuits underutilize hardware and face initialization latency issues....

💬 0 commentsarXiv:2601.08504v2PDF
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Posted in hep-ph · 2026-01-13 · Zhi-Peng Xing, Jin Sun, Xiao-Gang He

Decoding the Amplitude Pair with Distinct CPV Phases in Charmed Baryon Decays

In this Letter, we propose a strategy to extract information on the hierarchical amplitude pair in singly Cabibbo-suppressed (SCS) charmed baryon two-body decays, with a dominant amplitude proportional to $λ_s = V_{cs}^* V_{us}$ from tree operators and sub-leading one proportional to $λ_b = V_{cb}^* V_{ub}$ from both penguin and tree...

💬 0 commentsarXiv:2601.08502v2PDF
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Posted in gr-qc · 2026-01-13 · Emel Altas, Bayram Tekin

Geometry is Wavy: Curvature Wave Equations for Generic Affine Connections

Geometry is wavy: even at the purely geometric level (no particular theory chosen), curvature satisfies a covariant quasilinear wave equation. In Riemannian geometry equipped with the Levi-Civita connection, the Riemann curvature tensor obeys a wave equation of the schematic form \[ \Box Riem=\mathcal{Q}(Riem,Riem), \] where...

💬 0 commentsarXiv:2601.08501v2PDF
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Posted in physics.ins-det · 2026-01-13 · Udai Raj Singh, Rajinikumar Ramalingam, Christoph Reinhardt, Olaf Korth, Jörg Penning, Jörn Schaffran, Axel Lindner

Design and construction of a cryogenic subcooler-box for supplying single phase supercritical helium to dark matter and gravitational wave experiments

We report on the design, development, and installation of the ALPS Cryo-Platform Subcooler Box (ACPS), which is part of the cryogenic platform being established in the HERA North Hall at DESY to supply helium for cooling large-scale dark-matter and gravitational-wave experiments with very high heat loads. The ACPS is capable of...

💬 0 commentsarXiv:2601.08496v1PDF
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Posted in quant-ph · 2026-01-13 · Andreas Conta, Santiago Bogino, Frodo Köhncke, Ferdinand Schmidt-Kaler, Ulrich Poschinger

Toolchain for shuttling trapped-ion qubits in segmented traps

Scalable trapped-ion quantum computing requires fast and reliable transport of ions through complex, segmented radiofrequency trap architectures without inducing excessive motional excitation. We present a numerical toolchain for the systematic generation of time-dependent electrode voltages enabling fast, low-excitation ion shuttling...

💬 0 commentsarXiv:2601.08495v1PDF