Results 51 to 60 of about 7,243 (148)

Entropy production along nonequilibrium quantum jump trajectories

open access: yesNew Journal of Physics, 2013
For classical nonequilibrium systems, the separation of the total entropy production into the adiabatic and nonadiabatic contributions is useful for understanding irreversibility in nonequilibrium thermodynamics.
Jordan M Horowitz, Juan M R Parrondo
doaj   +1 more source

Stochastic thermodynamics of relativistic Brownian motion

open access: yesNew Journal of Physics, 2020
Physical scenarios that require a relativistic treatment are ubiquitous in nature, ranging from cosmological objects to charge carriers in Dirac materials.
P S Pal, Sebastian Deffner
doaj   +1 more source

Statistical Physics of the Inflaton Decaying in an Inhomogeneous Random Environment

open access: yesAdvances in High Energy Physics, 2018
We derive a stochastic wave equation for an inflaton in an environment of an infinite number of fields. We study solutions of the linearized stochastic evolution equation in an expanding universe.
Z. Haba
doaj   +1 more source

Stochastic thermodynamics of learning

open access: yes, 2019
Unravelling the physical limits of information processing is an important goal of non-equilibrium statistical physics. It is motivated by the search for fundamental limits of computation, such as Landauer's bound on the minimal work required to erase one bit of information.
openaire   +4 more sources

Speed-Accuracy Relations for Diffusion Models: Wisdom from Nonequilibrium Thermodynamics and Optimal Transport

open access: yesPhysical Review X
We discuss a connection between a generative model, called the diffusion model, and nonequilibrium thermodynamics for the Fokker-Planck equation, called stochastic thermodynamics.
Kotaro Ikeda   +3 more
doaj   +1 more source

Thermodynamics of exponential Kolmogorov–Nagumo averages

open access: yesNew Journal of Physics, 2023
This paper investigates generalized thermodynamic relationships in physical systems where relevant macroscopic variables are determined by the exponential Kolmogorov–Nagumo average.
Pablo A Morales   +2 more
doaj   +1 more source

Classification of complex systems by their sample-space scaling exponents

open access: yesNew Journal of Physics, 2018
The nature of statistics, statistical mechanics and consequently the thermodynamics of stochastic systems is largely determined by how the number of states W ( N ) depends on the size N of the system. Here we propose a scaling expansion of the phasespace
Jan Korbel, Rudolf Hanel, Stefan Thurner
doaj   +1 more source

Stochastic thermodynamics of rapidly driven systems

open access: yesNew Journal of Physics, 2015
We present the stochastic thermodynamics analysis of an open quantum system weakly coupled to multiple reservoirs and driven by a rapidly oscillating external field.
Gregory Bulnes Cuetara   +2 more
doaj   +1 more source

On the von Neumann entropy of a bath linearly coupled to a driven quantum system

open access: yesNew Journal of Physics, 2015
The change of the von Neumann entropy of a set of harmonic oscillators initially in thermal equilibrium and interacting linearly with an externally driven quantum system is computed by adapting the Feynman–Vernon influence functional formalism.
Erik Aurell, Ralf Eichhorn
doaj   +1 more source

Thermodynamic efficiency of learning a rule in neural networks

open access: yesNew Journal of Physics, 2017
Biological systems have to build models from their sensory input data that allow them to efficiently process previously unseen inputs. Here, we study a neural network learning a binary classification rule for these inputs from examples provided by a ...
Sebastian Goldt, Udo Seifert
doaj   +1 more source

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