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Finite-temperature magnetism gives rise to many phenomena in alloy materials, such as magnetic phase transformations, short or medium range order in magnetic alloys, spin waves, critical phenomena, and the magnetocaloric effect. Lattice…

Materials Science · Physics 2025-06-24 Brian Blankenau , Tianyu Su , Namhoon Kim , Elif Ertekin

A parallel implementation of coupled spin-lattice dynamics in the LAMMPS molecular dynamics package is presented. The equations of motion for both spin only and coupled spin-lattice dynamics are first reviewed, including a detailed account…

Statistical Mechanics · Physics 2018-08-01 J. Tranchida , S. J. Plimpton , P. Thibaudeau , A. P. Thompson

Ordinary differential equation models facilitate the understanding of cellular signal transduction and other biological processes. However, for large and comprehensive models, the computational cost of simulating or calibrating can be…

Quantitative Methods · Quantitative Biology 2023-11-29 Fabian Fröhlich , Daniel Weindl , Yannik Schälte , Dilan Pathirana , Łukasz Paszkowski , Glenn Terje Lines , Paul Stapor , Jan Hasenauer

We present Apertus, a fully open suite of large language models (LLMs) designed to address two systemic shortcomings in today's open model ecosystem: data compliance and multilingual representation. Unlike many prior models that release…

Computation and Language · Computer Science 2025-12-03 Project Apertus , Alejandro Hernández-Cano , Alexander Hägele , Allen Hao Huang , Angelika Romanou , Antoni-Joan Solergibert , Barna Pasztor , Bettina Messmer , Dhia Garbaya , Eduard Frank Ďurech , Ido Hakimi , Juan García Giraldo , Mete Ismayilzada , Negar Foroutan , Skander Moalla , Tiancheng Chen , Vinko Sabolčec , Yixuan Xu , Michael Aerni , Badr AlKhamissi , Inés Altemir Mariñas , Mohammad Hossein Amani , Matin Ansaripour , Ilia Badanin , Harold Benoit , Emanuela Boros , Nicholas Browning , Fabian Bösch , Maximilian Böther , Niklas Canova , Camille Challier , Clement Charmillot , Jonathan Coles , Jan Deriu , Arnout Devos , Lukas Drescher , Daniil Dzenhaliou , Maud Ehrmann , Dongyang Fan , Simin Fan , Silin Gao , Miguel Gila , María Grandury , Diba Hashemi , Alexander Hoyle , Jiaming Jiang , Mark Klein , Andrei Kucharavy , Anastasiia Kucherenko , Frederike Lübeck , Roman Machacek , Theofilos Manitaras , Andreas Marfurt , Kyle Matoba , Simon Matrenok , Henrique Mendonça , Fawzi Roberto Mohamed , Syrielle Montariol , Luca Mouchel , Sven Najem-Meyer , Jingwei Ni , Gennaro Oliva , Matteo Pagliardini , Elia Palme , Andrei Panferov , Léo Paoletti , Marco Passerini , Ivan Pavlov , Auguste Poiroux , Kaustubh Ponkshe , Nathan Ranchin , Javi Rando , Mathieu Sauser , Jakhongir Saydaliev , Muhammad Ali Sayfiddinov , Marian Schneider , Stefano Schuppli , Marco Scialanga , Andrei Semenov , Kumar Shridhar , Raghav Singhal , Anna Sotnikova , Alexander Sternfeld , Ayush Kumar Tarun , Paul Teiletche , Jannis Vamvas , Xiaozhe Yao , Hao Zhao , Alexander Ilic , Ana Klimovic , Andreas Krause , Caglar Gulcehre , David Rosenthal , Elliott Ash , Florian Tramèr , Joost VandeVondele , Livio Veraldi , Martin Rajman , Thomas Schulthess , Torsten Hoefler , Antoine Bosselut , Martin Jaggi , Imanol Schlag

Recently, a novel type of a multiscale simulation, called Relative Resolution (RelRes), was introduced. In a single system, molecules switch their resolution in terms of their relative separation, with near neighbors interacting via…

Soft Condensed Matter · Physics 2021-04-22 Mark Chaimovich , Aviel Chaimovich

A cardinal obstacle to performing quantum-mechanical simulations of strongly-correlated matter is that, with the theoretical tools presently available, sufficiently-accurate computations are often too expensive to be ever feasible. Here we…

Strongly Correlated Electrons · Physics 2021-02-10 John Rogers , Tsung-Han Lee , Sahar Pakdel , Wenhu Xu , Vladimir Dobrosavljević , Yong-Xin Yao , Ove Christiansen , Nicola Lanatà

Existing multi-LLM collaboration systems often encounter scalability challenges when integrating new LLMs and tasks, leading to suboptimal performance. To address this, we propose SMCS, a Scalable Multi-LLM Collaboration System designed to…

Computation and Language · Computer Science 2026-05-18 Shengji Tang , Jianjian Cao , Weihao Lin , Jiale Hong , Bo Zhang , Shuyue Hu , Lei Bai , Tao Chen , Wanli Ouyang , Peng Ye

We review various changes made in recent years to the software development process of the LAMMPS simulation software package and the software itself. We discuss how those changes have impacted the effort and workflow required to develop and…

Software Engineering · Computer Science 2025-05-13 Axel Kohlmeyer , Richard Berger

We develop holographic quantum simulation techniques to prepare correlated electronic ground states in quantum matrix product state (qMPS) form, using far fewer qubits than the number of orbitals represented. Our approach starts with a…

Strongly Correlated Electrons · Physics 2022-09-14 Daoheng Niu , Reza Haghshenas , Yuxuan Zhang , Michael Foss-Feig , Garnet Kin-Lic Chan , Andrew C. Potter

CP2K is a versatile open-source software package for simulations across a wide range of atomistic systems, from isolated molecules in the gas phase to low-dimensional functional materials and interfaces, as well as highly symmetric…

Many phenomena occurring in strongly correlated quantum systems still await conclusive explanations. The absence of isolated free quarks in nature is an example. It is attributed to quark confinement, whose origin is not yet understood. The…

Quantum Gases · Physics 2013-10-31 L. Tagliacozzo , A. Celi , P. Orland , M. W. Mitchell , M. Lewenstein

Simulation of non-adiabatic dynamics of a quantum system coupled to dissipative environments poses significant challenges. New sophisticated methods are regularly being developed with an eye towards moving to larger systems and more…

Quantum Physics · Physics 2023-06-07 Amartya Bose

Deep Active Learning (DAL) reduces annotation costs by selecting the most informative unlabeled samples during training. As real-world applications become more complex, challenges stemming from distribution shifts (e.g., open-set…

Machine Learning · Computer Science 2025-08-08 Chenkai Wu , Yuanyuan Qi , Xiaohao Yang , Jueqing Lu , Gang Liu , Wray Buntine , Lan Du

We describe methods to construct digital quantum simulation algorithms for quantum spin systems on a regular lattice with local interactions. In addition to tools such as the Trotter-Suzuki expansion and graph coloring, we also discuss the…

Quantum Physics · Physics 2025-03-12 Guido Burkard

Atomic-scale simulations have progressed tremendously over the past decade, largely due to the availability of machine-learning interatomic potentials. These potentials combine the accuracy of electronic structure calculations with the…

This paper presents an open-source MATLAB/Simulink physics simulator for rigid-body articulated systems, including manipulators and floating-base robots. Thanks to MATLAB/Simulink features like MATLAB system classes and Simulink function…

Robotics · Computer Science 2024-05-15 Nuno Guedelha , Venus Pasandi , Giuseppe L'Erario , Silvio Traversaro , Daniele Pucci

We present a major update to QuSpin, SciPostPhys.2.1.003 -- an open-source Python package for exact diagonalization and quantum dynamics of arbitrary boson, fermion and spin many-body systems, supporting the use of various (user-defined)…

Computational Physics · Physics 2019-08-14 Phillip Weinberg , Marin Bukov

We study the functional relationship between quantum control pulses in the idealized case and the pulses in the presence of an unwanted drift. We show that a class of artificial neural networks called LSTM is able to model this functional…

Quantum Physics · Physics 2022-08-30 M. Ostaszewski , J. A. Miszczak , P. Sadowski , L. Banchi

orbitize! is an open-source, object-oriented software package for fitting the orbits of directly-imaged objects. It packages the Orbits for the Impatient (OFTI) algorithm and a parallel-tempered Markov Chain Monte Carlo (MCMC) algorithm…

An open source software package for performing dynamic RMS simulation of small to medium-sized power systems is presented, written entirely in the Python programming language. The main objective is to facilitate fast prototyping of new wide…

Systems and Control · Electrical Eng. & Systems 2021-01-11 Hallvar Haugdal , Kjetil Uhlen