Results 21 to 30 of about 2,110 (237)

Hybrid classical-quantum computing: Applications to statistical mechanics of financial markets [PDF]

open access: yesE3S Web of Conferences, 2021
Hybrid Classical-Quantum computing is now offered by several commercial quantum computers. In this project, a model of financial options, Statistical Mechanics of Financial Markets (SMFM), uses this approach. However, only Classical (super-)computers are
Ingber Lester
doaj   +1 more source

Entropy regularized reinforcement learning using large deviation theory

open access: yesPhysical Review Research, 2023
Reinforcement learning (RL) is an important field of research in machine learning that is increasingly being applied to complex optimization problems in physics.
Argenis Arriojas   +3 more
doaj   +1 more source

Nonequilibrium Phenomena in Confined Systems

open access: yesEntropy, 2017
Confined systems exhibit a large variety of nonequilibrium phenomena. In this special issue, we have collected a limited number of papers that were presented during the XXV Sitges Conference on Statistical Mechanics, devoted to “Nonequilibrium phenomena ...
Giancarlo Franzese   +2 more
doaj   +1 more source

Hydrodynamic and Thermodynamic Nonequilibrium Effects around Shock Waves: Based on a Discrete Boltzmann Method

open access: yesEntropy, 2020
A shock wave that is characterized by sharp physical gradients always draws the medium out of equilibrium. In this work, both hydrodynamic and thermodynamic nonequilibrium effects around the shock wave are investigated using a discrete Boltzmann model ...
Chuandong Lin, Xianli Su, Yudong Zhang
doaj   +1 more source

Nonequilibrium Statistical Mechanics [PDF]

open access: yes, 2022
Active matter is everywhere, from macroscopic to microscopic scales, we find systems such as human crowd or flock of birds as well as bacterial colonies. These systems composed of particles are able to convert their surrounding energy into motion, and naturally exist out of thermodynamic equilibrium. At the microscopic scale, a specific class of active
openaire   +2 more sources

Contact Geometry of Mesoscopic Thermodynamics and Dynamics

open access: yesEntropy, 2014
The time evolution during which macroscopic systems reach thermodynamic equilibrium states proceeds as a continuous sequence of contact structure preserving transformations maximizing the entropy.
Miroslav Grmela
doaj   +1 more source

Stochastic thermodynamics of all-to-all interacting many-body systems

open access: yesNew Journal of Physics, 2020
We provide a stochastic thermodynamic description across scales for N identical units with all-to-all interactions that are driven away from equilibrium by different reservoirs and external forces.
Tim Herpich   +3 more
doaj   +1 more source

Linear stochastic thermodynamics

open access: yesNew Journal of Physics, 2022
We study the thermodynamics of open systems weakly driven out-of-equilibrium by nonconservative and time-dependent forces using the linear regime of stochastic thermodynamics. We make use of conservation laws to identify the potential and nonconservative
Danilo Forastiere   +2 more
doaj   +1 more source

Quantum-Heat Fluctuation Relations in Three-Level Systems Under Projective Measurements

open access: yesCondensed Matter, 2020
We study the statistics of energy fluctuations in a three-level quantum system subject to a sequence of projective quantum measurements. We check that, as expected, the quantum Jarzynski equality holds provided that the initial state is thermal.
Guido Giachetti   +3 more
doaj   +1 more source

Nonequilibrium molecular dynamics

open access: yesCondensed Matter Physics, 2005
Nonequilibrium Molecular Dynamics is a powerful simulation tool. Like its equilibrium cousin, nonequilibrium molecular dynamics is based on time-reversible equations of motion. But unlike conventional mechanics, nonequilibrium molecular dynamics provides
Wm.G.Hoover, C.G.Hoover
doaj   +1 more source

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