Expertini Research Research

Browse Research Papers

670+ open-access research outputs.

โœ• Clear
๐Ÿ” matej hoffmann ๐Ÿ“‚ Physics
Showing 670 results for "matej hoffmann" in Physics
Physics Preprint PDF DOI

A benchmark for binary star interaction with a supermassive black hole in general relativity

Megha Sharma, Alexander Heger, Daniel J. Price, Emilio Tejeda, Evgeni Grishin, Luis A. Manzaneda, Alessandro A. Trani ยท 2026

Most galaxies have supermassive black holes (SMBH) at their centres, surrounded by stars with binary systems also present in this environment. We use two schemes - post-Newtonian (PN) and a scalar perโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

EQISA: Energy-efficient Quantum Instruction Set Architecture using Sparse Dictionary Learning

Sibasish Mishra, Aritra Sarkar, Sebastian Feld ยท 2026

The scalability of quantum computing in supporting sophisticated algorithms critically depends not only on qubit quality and error handling, but also on the efficiency of classical control, constraineโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Magnetic and electric properties of the metallic kagome antiferromagnet CrRhAs

Franziska Breitner, Bin Shen, Anton Jesche, Alexander A. Tsirlin, Philipp Gegenwart ยท 2026

CrRhAs is an antiferromagnetic kagome metal predicted to host a nontrivial spin texture with vector spin chirality [Huang \textit{et al.}, \textit{npj Quantum Mater.} \textbf{8}, 32 (2023)]. We reportโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Physics-informed Bayesian Optimization for Quantitative High-Resolution Transmission Electron Microscopy

Xiankang Tang, Yixuan Zhang, Juri Barthel, Chun-Lin Jia, Rafal E. Dunin-Borkowski, Hongbin Zhang, Lei Jin ยท 2026

Quantitative high-resolution transmission electron microscopy (HRTEM) provides an indispensable means to understand the structure-property relationships of a material in atomic dimensions. Successful โ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Generation of Whistler Waves by Reflected Electrons and Their Self-Confinement at Quasi-Perpendicular Shocks

Ruolin Wang, Takanobu Amano ยท 2026

We investigate the mechanism of whistler-mode wave generation by shock-reflected electrons at quasi-perpendicular collisionless shocks. By employing Liouville mapping to construct the electron velocitโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

CHEX-MATE: Are we getting cluster thermodynamics right?

R. Seppi, D. Eckert, E. Rasia, S. T. Kay, K. Dolag, V. Biffi, Y. E. Bahar, H. Bourdin, F. De Luca, M. De Petris, S. Ettori, M. Gaspari, F. Gastaldello, V. Ghirardini, L. Lovisari, P. Mazzotta, G. W. Pratt, E. Pointecouteau, M. Rossetti, J. Sayers, M. Sereno, G. Yepes ยท 2026

Galaxy clusters offer powerful insights into the large-scale structure of the Universe and the physics of baryons in hot state. Their scientific exploitation, however, hinges on our ability to accuratโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Synthesis and Structural Analysis of an Emissive Colloidal Argyrodite Nanocrystal: Canfieldite Ag8SnS6

Francisco Yarur Villanueva, Victor Quezada Novoa, Pascal Rusch, Stefano Toso, Maxwell W. Terban, Yurii P. Ivanov, Joaquin Carlos Chu, Maxine J. Kirshenbaum, Ehsan Nikbin, Maria J. Gendron Romero, Mirko Prato, Giorgio Divitini, Jane Y. Howe, Mark W.B. Wilson, Liberato Manna ยท 2026

We resolve a phase identification controversy in the Ag-Sn-S material system by unraveling the polymorphic structure of nanocrystals within the argyrodite material family. Argyrodites are a class of sโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Ghost Embedding Bridging Chemistry and One-Body Theories

Carlos Mejuto-Zaera, Michele Fabrizio ยท 2026

Phenomenological rules play a central role in the design of chemical reactions and materials with targeted properties. Typically, these are formulated heuristically in terms of non-interacting orbitalโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Combined dynamic-kinematic validation of droplet-wall impact modeling

Dmitry Zharikov, Maxim Piskunov, Dmitry Kolomenskiy ยท 2026

Many numerical studies validate droplet wall impact using only maximum spreading diameter, yet this metric alone cannot ensure correct droplet dynamics. We present a combined dynamic contact angle (DCโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Maximum residual strong monogamy inequality for multiqubit entanglement

Dong-Dong Dong, Xue-Ke Song, Liu Ye, Dong Wang, Gerardo Adesso ยท 2026

We establish two new inequalities, the weighted strong monogamy (WSM) and the maximum residual strong monogamy (MRSM), which sharpen the generalized Coffman-Kundu-Wootters inequity for multiqubit statโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

How well is the local Large Scale Structure of the Universe known? CosmicFlows vs. Biteau's Galaxy Catalog with Cloning

Yifei Li, Glennys R. Farrar ยท 2026

Knowledge of the actual density distribution of matter in the local universe is needed for a variety of purposes, for instance as a baseline model for ultrahigh energy cosmic ray sources in the continโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Emergent Cooperation in Quantum Multi-Agent Reinforcement Learning Using Communication

Michael Kolle, Christian Reff, Leo Sunkel, Julian Hager, Gerhard Stenzel, Claudia Linnhoff-Popien ยท 2026

Emergent cooperation in classical Multi-Agent Reinforcement Learning has gained significant attention, particularly in the context of Sequential Social Dilemmas (SSDs). While classical reinforcement lโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Dielectric, magnetic and lattice dynamics properties of double perovskite (Ca0.5Mn1.5)MnWO6

Hong Dang Nguyen, Alexei A. Belik, Petr Kuzel, Fedir Borodavka, Maxim Savinov, Jan Drahokoupil, M. Jarosova, Petr Proschek, Bartolomej Vanicek, Stanislav Kamba ยท 2026

Recent dielectric and magnetic studies of (Ca0.5Mn1.5)MnWO6 ceramics [A.A. Belik, Chem. Mater. 36, 7604 (2024)] have classified this material as a rare hybrid multiferroic, with both antiferromagneticโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Faster grain-boundary diffusion with a higher activation enthalpy than bulk diffusion in ionic space-charge layers

Timon F. Kielgas, Roger A. De Souza ยท 2026

Faster diffusion of cations along grain boundaries is reported in the literature for a variety of acceptor-doped $AB\mathrm{O}_{3}$ perovskite-type oxides. The ratio $r$ of the activation enthalpy of โ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

CHEX-MATE: Relationship between X-ray and millimetre inferences of galaxy cluster temperature profiles

F. De Luca, H. Bourdin, P. Mazzotta, G. Luzzi, M.G. Campitiello, M. De Petris, D. Eckert, S. Ettori, A. Ferragamo, W. Forman, M. Gaspari, F. Gastaldello, S. Ghizzardi, M. Gitti, S.T. Kay, J. Kim, L. Lovisari, J.F. Macias-Perez, B.J. Maughan, M. Munoz-Echeverria, F. Oppizzi, E. Pointecouteau, G.W. Pratt, E. Rasia, M. Rossetti, H. Saxena, J. Sayers, M. Sereno ยท 2026

Thermodynamic profiles from X-ray and millimetre observations of galaxy clusters are often compared under the simplifying assumptions of smooth, spherically symmetric intracluster medium. These approxโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Harmony of the Spheres: Extension to All Points of an Algorithm for Producing a Density Field with Given Two-, Three-, and Four-Point Correlation Functions

Zcahary Slepian, Alessandro Greco ยท 2025

Previous work (Slepian 2024) showed that the Smith-Zaldarriaga (2011) algorithm to realize Cosmic Microwave Background (CMB) maps with any desired harmonic-space bispectrum could be generalized to proโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Computer Simulation of the Growth of a Metal-Organic Framework Proto-crystal at Constant Chemical Potential

Sahar Andarzi Gargari, Emilio Mendez, Rocio Semino ยท 2025

Designing metal-organic frameworks (MOFs) synthesis protocols is currently largely driven by trial-and-error, since we lack fundamental understanding of the molecular level mechanisms that underlie thโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Robust coherent phonon mode at GaP/Si(001) heterointerface

Kunie Ishioka, Gerson Mette, Steven Youngkin, Andreas Beyer, Wolfgang Stolz, Kerstin Volz, Christopher J. Stanton, Ulrich Hofer ยท 2025

Lattice-matched GaP layers without extended defects can be grown on Si(001) substrate via a two-step growth procedure, consisting of low-temperature nucleation followed by high-temperature overgrowth.โ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Mock Observations for the CSST Mission: Main Surveys -- the Mock Catalogue

Cheng-Liang Wei, Yu Luo, Hao Tian, Ming Li, Yi-Sheng Qiu, Guo-Liang Li, Yue-Dong Fang, Xin Zhang, De-Zi Liu, Nan Li, Ran Li, Huan-Yuan Shan, Lin Nie, Zizhao He, Lei Wang, Xi Kang, Dongwei Fan, Yang Chen, Xiaoting Fu, Chao Liu ยท 2025

The Chinese Space Station Survey Telescope (CSST) is a flagship space mission, designed to carry out a large-area sky survey to explore the nature of dark matter and dark energy in the Universe. The oโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Short-range Spin Freezing State in the Double Trillium Lattice Spin-Liquid Candidate KSrFe$_2$(PO$_4$)$_3$ Revealed via $^{31}$P NMR

Sebin J. Sebastian, Q. -P. Ding, A. A. Tsirlin, R. Nath, Y. Furukawa ยท 2025

A comprehensive $^{31}$P nuclear magnetic resonance (NMR) study, combined with thermodynamic measurements and first-principle band-structure calculations, has been conducted to explore the ground statโ€ฆ

Read Paper โ†’
Page 1 of 34 Next โ†’