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🔍 stephan lukasczyk 📂 Physics
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Physics Preprint PDF DOI

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

M.F.P. ten Eikelder, A. Brunk · 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 meaningfu…

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Physics Preprint PDF DOI

Asymmetric freezing of a sliding droplet on an inclined surface

Sivanandan Kavuri, George Karapetsas, Chander Shekhar Sharma, Kirti Chandra Sahu · 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, capi…

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Physics Preprint PDF DOI

Optimum-Transmission Free-Space Optical Communications

Prajit Dhara, Babak N. Saif, Jeffrey H. Shapiro, Saikat Guha · 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 …

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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) · 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 gen…

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Physics Preprint PDF DOI

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

Jan Kren, Bojan Niceno, Yohei Sato · 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 …

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Physics Preprint PDF DOI

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 · 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 re…

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Physics Preprint PDF DOI

Quantitative analysis of fluctuating hydrodynamics in uniform shear flow

Hiroyoshi Nakano, Yuki Minami · 2026

Many theoretical predictions in fluctuating hydrodynamics under uniform shear flow have lacked precise quantitative verification due to analytical approximations whose quantitative impacts are difficu…

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Physics Preprint PDF DOI

A MeerKAT view of the Neutral Atomic Gas in Stephan's Quintet

K. Rajpurohit, E. O'Sullivan, G. Schellenberger, J. M. Vrtilek, L. P. David, S. Giacintucci, P. N. Appleton, C. K. Xu, C. Cheng, T. Deb · 2026

We present new MeerKAT 21cm spectral line observations of the neutral hydrogen gas in the compact galaxy group Stephan's Quintet (HCG 92). These data provide a significantly improved view of the atomi…

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Physics Preprint PDF DOI

Unified description of Sivers and Boer-Mulders asymmetries from twist-3 correlations

Zhimin Zhu, Jiangshan Lan, Chandan Mondal, Xingbo Zhao, James P. Vary, BLFQ Collaboration · 2026

We present the first calculation of the Efremov-Teryaev-Qiu-Sterman functions and associated twist-3 quark-gluon correlation functions for both the proton and pion. These functions are determined usin…

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Physics Preprint PDF DOI

The impact of prescriptions in phenomenological extractions of Transverse Momentum Dependent distributions

Matteo Cerutti, Andrea Simonelli · 2026

We investigate the impact of phenomenological prescriptions in the Collins-Soper-Sterman (CSS) approach for global extractions of Transverse Momentum Distributions (TMDs). We show that fits to low-ene…

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Physics Preprint PDF DOI

An Extended Modified Kadomtsov-Petviashvili Equation: Ermakov-Painlev\'e II Symmetry Reduction with Moving Boundary Application

Colin Rogers, Pablo Amster · 2026

Here, a novel 2+1-dimensional nonlinear evolution equation with temporal modulation is introduced which admits integrable Ermakov-Painlev\'e II symmetry reduction. Application is made to obtain exact …

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Physics Preprint PDF DOI

Fourier transform of irregular connections on $\mathbb P^1$ and classification of Argyres-Douglas theories

Jean Doucot · 2026

We give a mathematical interpretation of the dualities between type $A$ Argyres-Douglas theories recently obtained by Beem, Martone, Sacchi, Singh and Stedman, building on work of Xie. Using the fact …

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Physics Preprint PDF DOI

Tripartite information of free fermions: a universal entanglement coefficient from the sine kernel

Aleksandrs Sokolovs · 2026

We study the tripartite information I_3 of free fermions on two-dimensional lattices partitioned into three adjacent strips of width w. Translation invariance yields the exact decomposition I_3 = \sum…

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Physics Preprint PDF DOI

Freezing lakes as analogue models of $\Lambda$CDM cosmology and beyond

Lorens F. Niehof, Ananya Venkatasubramanian, Federico Toschi, Stefano Liberati · 2026

We extend previous conduction-based analogies between ice growth in a lake and cosmological expansion by incorporating buoyancy-driven heat transport. Reformulating the Stefan problem with both conduc…

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Physics Preprint PDF DOI

Holographic QCD equation of state constrained by lattice QCD: neural-ODE for probe-limit and a back-reaction test

Yutian Deng, Mei Huang, Lin Zhang · 2026

We study the equation of state (EoS) of QCD matter in a bottom-up holographic setup that combines an Einstein-Maxwell-dilaton (EMD) sector with an improved Karch-Katz-Son-Stephanov (KKSS) flavor actio…

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Physics Preprint PDF DOI

Black holes and bits: A simple path to Bekenstein-Hawking entropy

Jorge Pinochet · 2026

In the early 1970s, Jacob Bekenstein discovered that black holes have entropy, which became one of the greatest scientific revolutions of the second half of the 20th century. The objective of this pap…

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Physics Preprint PDF DOI

Practical quantum tokens: challenges and perspectives

Nadezhda P. Kukharchyk, Holger Boche, Christian Deppe, Kirill G. Fedorov, Martin E. Garcia, Ilja Gerhardt, Rudolf Gross, Thomas Halfmann, Hans Huebl, David Hunger, Wolfgang Kilian, Roman Kolesov, Juliane Kramer, Alexander Kubanek, Kai Muller, Boris Naydenov, Janis Notzel, Anna P. Ovvyan, Wolfram H. P. Pernice, Gregor Pieplow, Cyril Popov, Tim Schroder, Kilian Singer, Janik Wolters · 2026

The concept of quantum tokens dates back alongside quantum cryptography to Stephen Wiesner's seminal work in 1983[1]. Already this initial work proposes society-relevant applications such as secure qu…

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Physics Preprint PDF DOI

Fixed-grid sharp-interface numerical solutions to the three-phase spherical Stefan problem

Yavkreet Swami, Jacob Barajas, Amneet Pal Singh Bhalla · 2026

Many metal manufacturing processes involve phase change phenomena, which include melting, boiling, and vaporization. These phenomena often occur concurrently. A prototypical 1D model for understanding…

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Physics Preprint PDF DOI

Super-resolution Imaging of Limited-size Objects

Taeyong Chang, Giorgio Adamo, Nikolay I. Zheludev · 2026

Improvement of label-free far-field resolution of optical imaging is possible with prior knowledge of the object such as its sparsity or accumulated by a posteriori examination of a similar class of o…

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Physics Preprint PDF DOI

Spectral Filtering for Learning Quantum Dynamics

Elad Hazan, Annie Marsden · 2026

Learning high-dimensional quantum systems is a fundamental challenge that notoriously suffers from the curse of dimensionality. We formulate the task of predicting quantum evolution in the linear resp…

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