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๐Ÿ” stepan holub ๐Ÿ“‚ Physics
Showing 1602 results for "stepan holub" in Physics
Physics Preprint PDF DOI

Mixture-aware closure of the N-phase Navier--Stokes--Cahn--Hilliard mixture model

M.F.P. ten Eikelder, A. Brunk ยท 2026

Diffuse-interface (phase-field) models are widely used to describe multiphase mixtures and their interfacial dynamics. In multiphase settings, however, the constitutive closure should remain meaningfuโ€ฆ

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High-Girth Regular Quantum LDPC Codes from Square-Base Hypergraph Products via CPM Lifts

Koki Okada, Kenta Kasai ยท 2026

We study square-base Calderbank--Shor--Steane (CSS) hypergraph-product codes as a finite-length class for regular high-girth quantum low-density parity-check (LDPC) design. For base matrices of small โ€ฆ

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Asymmetric freezing of a sliding droplet on an inclined surface

Sivanandan Kavuri, George Karapetsas, Chander Shekhar Sharma, Kirti Chandra Sahu ยท 2026

We investigate the asymmetric freezing of a liquid droplet sliding on an inclined cold surface using numerical simulations based on the lubrication approximation. The combined effects of gravity, capiโ€ฆ

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Physics Preprint PDF DOI

Operating a contextual Stern-Gerlach apparatus

Th. K. Mavrogordatos ยท 2026

We propose a contextual cavity/circuit QED analogue and extension of the Stern-Gerlach experiment, where the pseudo-spin of a two-state `atomic' transition plays the role of the ``spin'', while the reโ€ฆ

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Physics Preprint PDF DOI

Optimum-Transmission Free-Space Optical Communications

Prajit Dhara, Babak N. Saif, Jeffrey H. Shapiro, Saikat Guha ยท 2026

Slepian developed the Prolate Spheroidal Wavefunction (PSW) spatial-mode basis, which forms the normal modes of the Fresnel-propagation kernel of a free-space optical communications channel bookended โ€ฆ

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Physics Preprint PDF DOI

Quark Number Susceptibilities and Conserved Charge Fluctuations in $(2+1)$-flavor QCD with M\"obius domain-wall fermions (MDWF)

Jishnu Goswami, Yasumichi Aoki, Hidenori Fukaya, Shoji Hashimoto, Issaku Kanamori, Takashi Kaneko, Yoshifumi Nakamura, David Ward, Yu Zhang (JLQCD Collaboration) ยท 2026

We calculate second- and selected fourth-order conserved-charge fluctuations in $(2+1)$-flavor QCD using M\"obius domain-wall fermions (MDWF) along a line of constant physics. Gauge ensembles were genโ€ฆ

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High-Girth Regular Quantum LDPC Codes from Affine-Coset Structures

Koki Okada, Kenta Kasai ยท 2026

We construct a quantum low-density parity-check code family from a length-$512$ Calderbank--Shor--Steane base matrix pair. The base pair is permutation-equivalent to the known SPC(3) product CSS code,โ€ฆ

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Sensing of Low-Frequency Electric Fields Using Rydberg EIT within the Fisher Information Framework

Tianyu Zhou, Haipeng Xie, Xin Wang ยท 2026

Rydberg atoms, which possess exceptionally large electric dipole moments, offer a promising route for electric field sensing as well as metrology traceable to the International System of Units (SI); hโ€ฆ

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Heuristic Search for Minimum-Distance Upper-Bound Witnesses in Quantum APM-LDPC Codes

Kenta Kasai ยท 2026

This paper investigates certified upper bounds on the minimum distance of an explicit family of Calderbank-Shor-Steane quantum LDPC codes constructed from affine permutation matrices. All codes considโ€ฆ

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Sharp-interface VOF method for phase-change simulations on unstructured meshes

Jan Kren, Bojan Niceno, Yohei Sato ยท 2026

Unstructured meshes are among the most versatile approaches for capturing non-canonical geometries in fluid dynamics simulations. Despite this, most high-fidelity first-principles phase-change models โ€ฆ

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Irregularly Sampled Time Series Interpolation for Binary Evolution Simulations Using Dynamic Time Warping

Ugur Demir, Philipp M. Srivastava, Aggelos Katsaggelos, Vicky Kalogera, Santiago L. Tapia, Manuel Ballester, Shamal Lalvani, Patrick Koller, Jeff J. Andrews, Seth Gossage, Max M. Briel, Elizabeth Teng ยท 2026

Binary stellar evolution simulations are computationally expensive. Stellar population synthesis relies on these detailed evolution models at a fundamental level. Producing thousands of such models reโ€ฆ

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Optimized Gottesman-Kitaev-Preskill Error Correction via Tunable Preprocessing

Xiang-Jiang Chen, Hao-Miao Jiang, Liu-Jun Wang, Qing Chen ยท 2026

The Gottesman-Kitaev-Preskill (GKP) code is a promising bosonic candidate for realizing fault-tolerant quantum computation. Among existing error-correction protocols for GKP code, the Steane-type scheโ€ฆ

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Localized Steps toward ACT-Favored Inflation

Kai-Ge Zhang, Chengjie Fu, Jian-Feng He, Zong-Kuan Guo ยท 2026

Recent ACT measurements favor a scalar spectral index n_s larger than the Planck value, posing a challenge to many single-field slow-roll inflation models. We show that a smooth, localized step in theโ€ฆ

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Stern-Gerlach interferometry in three dimensions: the role of transverse fields

D. Meng, D. Z. Chan, J. D. D. Martin ยท 2026

We show that superficially similar implementations of Stern-Gerlach Interferometers (SGIs) are expected to differ dramatically in their sensitivity to fields transverse to the primary acceleration dirโ€ฆ

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Quantum machine learning for the quantum lattice Boltzmann method: Trainability of variational quantum circuits for the nonlinear collision operator across multiple time steps

Antonio David Bastida Zamora, Ljubomir Budinski, Pierre Sagaut, Valtteri Lahtinen ยท 2026

This study investigates the application of quantum machine learning (QML) to approximate the nonlinear component of the collision operator within the quantum lattice Boltzmann method (QLBM). To achievโ€ฆ

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A finite-precision Lanczos-Golub-Welsch route to probability-table construction in resonance self-shielding

Beichen Zheng ยท 2026

This work reformulates Chiba's affine-order prescription as a polynomial-moment problem for a transformed positive measure, and develops an alternative finite-precision construction route based on thiโ€ฆ

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Updates on the DEAP-3600 experiment and steps towards the ARGO experiment

Susnata Seth (on behalf of GADMC, DEAP collaborations) ยท 2026

The DEAP-3600 experiment, with an approximately 3.3 tonne liquid argon (LAr) target, is currently the world's largest single-phase LAr dark matter detector. It is located 2 km underground at SNOLAB, Cโ€ฆ

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Finite-Degree Quantum LDPC Codes Reaching the Gilbert-Varshamov Bound

Kenta Kasai ยท 2026

We construct asymptotically good nested Calderbank-Shor-Steane (CSS) code pairs from Hsu-Anastasopoulos codes and MacKay-Neal codes. In the fixed-degree regime, we prove that the coding rate stays bouโ€ฆ

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Flagging the Clifford hierarchy:~Fault-tolerant logical $\frac{\pi}{2^l}$ rotations via measuring circuit gauge operators of non-Cliffords

Shival Dasu, Ben Criger ยท 2026

We provide a recursively defined sequence of flag circuits which will detect logical errors induced by non-fault-tolerant $R_{\overline{Z}}(\frac{\pi}{2^l})$ gates on CSS codes with a fault distance oโ€ฆ

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Comment on 'Observation of Shapiro Steps in the Charge Density Wave State Induced by Strain on a Piezoelectric Substrate'

D.Yu. Saltykova, M.V. Nikitin, V.Ya. Pokrovskii, S.G. Zybtsev, V.V. Kolesov, V.V. Kashin, I.E. Kuznetsova, I.A. Nedospasov ยท 2026

In their Letter Fujiwara et al. (10.48550/arXiv.2511.09888. 2025) report a high-quality experiment demonstrating the synchronization of the CDW sliding in NbSe3 whiskers (nanowires) with surface acousโ€ฆ

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