Results 11 to 20 of about 35,137 (259)

The entropy concept for non-equilibrium states [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
In earlier work, we presented a foundation for the second law of classical thermodynamics in terms of the entropy principle. More precisely, we provided an empirically accessible axiomatic derivation of an entropy function defined on all equilibrium states of all systems that has the appropriate additivity and scaling properties ...
Lieb, Elliott H., Yngvason, Jakob
openaire   +4 more sources

The Entropy Density Behavior across a Plane Shock Wave

open access: yesEntropy, 2023
Entropy density behavior poses many problems when we study non-equilibrium situations. In particular, the local equilibrium hypothesis (LEH) has played a very important role and is taken for granted in non-equilibrium problems, no matter how extreme they
Rosa M. Velasco, Francisco J. Uribe
doaj   +1 more source

Entanglement entropy from non-equilibrium Monte Carlo simulations

open access: yesJournal of High Energy Physics, 2023
We study the entanglement entropy in lattice field theory using a simulation algorithm based on Jarzynski’s theorem. We focus on the entropic c-function for the Ising model in two and in three dimensions: after validating our algorithm against known ...
Andrea Bulgarelli, Marco Panero
doaj   +1 more source

Entropy production in non-equilibrium fluctuating hydrodynamics [PDF]

open access: yesThe Journal of Chemical Physics, 2012
Fluctuating entropy production is studied for a set of linearly coupled complex fields. The general result is applied to non-equilibrium fluctuating hydrodynamic equations for coarse-grained fields (density, temperature, and velocity), in the framework of model granular fluids.
Gradenigo, Giacomo   +2 more
openaire   +4 more sources

Entropy Production and Irreversible Processes -from the perspective of continuous topological evolution.

open access: yesEntropy, 2004
: A concept of entropy production associated with continuous topological evolution is deduced (without statistics) from the fact that Cartan-Hilbert 1-form of Action defines a non-equilibrium symplectic system of Pfaff Topological dimension 2n+2.
Robert M. Kiehn
doaj   +1 more source

ATP-Dependent Diffusion Entropy and Homogeneity in Living Cells

open access: yesEntropy, 2019
Intracellular dynamics is highly complex, and includes diffusion of poly-dispersed objects in a non-homogeneous, out-of-equilibrium medium. Assuming non-equilibrium steady-state, we developed a framework that relates non-equilibrium fluctuations to ...
Ishay Wohl, Eilon Sherman
doaj   +1 more source

Informational analysis of genetic equilibrium on different mating varieties

open access: yes浙江大学学报. 农业与生命科学版, 2006
It was demonstrated that two kinds of frequency distribution on gamete and genotype were equivalent to Hardy-Weinberg equilibrium distribution with respect to limited loci in a diploid population when the gamete entropy and genotype entropy reached ...
ZHANG Hong-yan   +3 more
doaj   +1 more source

Estimating time-dependent entropy production from non-equilibrium trajectories

open access: yesCommunications Physics, 2022
While methods for estimating the entropy production rate of a stationary process are relatively well established, this is still a challenge in non-stationary conditions.
Shun Otsubo   +3 more
doaj   +1 more source

Fluctuation theorem between non-equilibrium states in an RC circuit

open access: yesNew Journal of Physics, 2015
Fluctuation theorems impose constraints on the probability of observing negative entropy production in small systems driven out of equilibrium. The range of validity of fluctuation theorems has been extensively tested for transitions between equilibrium ...
L Granger   +4 more
doaj   +1 more source

On Clausius’ approach to entropy and analogies in non-equilibrium

open access: yesEnsaios Matemáticos, 2023
10 pages, to appear in Ensaios Matematicos special issue dedicated to Errico Presutti.
openaire   +2 more sources

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