Results 11 to 20 of about 7,300,790 (323)

Macroscopic fluctuation theory [PDF]

open access: yesReviews of Modern Physics, 2015
Stationary non-equilibrium states describe steady flows through macroscopic systems. Although they represent the simplest generalization of equilibrium states, they exhibit a variety of new phenomena. Within a statistical mechanics approach, these states
Alberto De Sole   +31 more
core   +8 more sources

Fluctuation Theory for Upwards Skip-Free Lévy Chains [PDF]

open access: yesRisks, 2018
A fluctuation theory and, in particular, a theory of scale functions is developed for upwards skip-free Lévy chains, i.e., for right-continuous random walks embedded into continuous time as compound Poisson processes.
Matija Vidmar
doaj   +2 more sources

Para-Sasakian geometry in thermodynamic fluctuation theory [PDF]

open access: yes, 2015
In this work we tie concepts derived from statistical mechanics, information theory and contact Riemannian geometry within a single consistent formalism for thermodynamic fluctuation theory. We derive the concrete relations characterizing the geometry of
Bravetti, A., Lopez-Monsalvo, C. S.
core   +2 more sources

Fluctuation, Dissipation and the Arrow of Time [PDF]

open access: yesEntropy, 2011
The recent development of the theory of fluctuation relations has led to new insights into the ever-lasting question of how irreversible behavior emerges from time-reversal symmetric microscopic dynamics.
Peter Hänggi, Michele Campisi
doaj   +8 more sources

Analyzing NBA player positions and interactions with density-functional fluctuation theory [PDF]

open access: yesScientific Reports
The increasing availability of high-precision player-tracking data in sports—centimeter-precision positional information of athletes captured dozens of times per second—has the potential to improve the quantification of player abilities and overall team ...
Boris Barron   +2 more
doaj   +2 more sources

Spin-fluctuation theory beyond Gaussian approximation [PDF]

open access: yes, 2010
A characteristic feature of the Gaussian approximation in the functional-integral approach to the spin-fluctuation theory is the jump phase transition to the paramagnetic state.
Abrikosov A A   +19 more
core   +3 more sources

Effective Fluctuation and Response Theory [PDF]

open access: yesJournal of Statistical Physics, 2018
The so-called fluctuation theorems pushed the study of systems far beyond equilibrium, whose response to thermodynamic forces (affinities) is characterized by the reciprocal and the fluctuation-dissipation relations.
M. Polettini, M. Esposito
semanticscholar   +6 more sources

Numerical Techniques in Lévy Fluctuation Theory [PDF]

open access: yesMethodology and Computing in Applied Probability, 2012
This paper presents a framework for numerical computations in fluctuation theory for Lévy processes. More specifically, with $\bar X_t:= \sup_{0\le s\le t} X_s$ denoting the running maximum of the Lévy process Xt, the aim is to evaluate ${\mathbb P}(\bar
Naser M. Asghari, P. Iseger, M. Mandjes
semanticscholar   +5 more sources

Exact Solution of the Macroscopic Fluctuation Theory for the Symmetric Exclusion Process. [PDF]

open access: yesPhysical Review Letters, 2022
We present the first exact solution for the time-dependent equations of the macroscopic fluctuation theory (MFT) for the symmetric simple exclusion process by combining a generalization of the canonical Cole-Hopf transformation with the inverse ...
K. Mallick, H. Moriya, T. Sasamoto
semanticscholar   +1 more source

Crossover from the macroscopic fluctuation theory to the Kardar-Parisi-Zhang equation controls the large deviations beyond Einstein's diffusion. [PDF]

open access: yesPhysical Review E, 2022
We study the crossover from the macroscopic fluctuation theory (MFT), which describes one-dimensional stochastic diffusive systems at late times, to the weak noise theory (WNT), which describes the Kardar-Parisi-Zhang (KPZ) equation at early times.
Alexandre Krajenbrink, P. Le Doussal
semanticscholar   +1 more source

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