Results 1 to 10 of about 35,406 (311)

Markovian perturbation, response and fluctuation dissipation theorem [PDF]

open access: bronzePhysical Review, 2010
We consider the Fluctuation Dissipation Theorem (FDT) of statistical physics from a mathematical perspective. We formalize the concept of "linear response function" in the general framework of Markov processes.
Amir Dembo, Jean-Dominique Deuschel
core   +17 more sources

Fluctuation-dissipation-type theorem in stochastic linear learning [PDF]

open access: greenPhysical Review E, 2021
The fluctuation-dissipation theorem (FDT) is a simple yet powerful consequence of the first-order differential equation governing the dynamics of systems subject simultaneously to dissipative and stochastic forces. The linear learning dynamics, in which the input vector maps to the output vector by a linear matrix whose elements are the subject of ...
Manhyung Han   +3 more
openalex   +5 more sources

Quantum violation of fluctuation-dissipation theorem [PDF]

open access: greenJournal of Statistical Mechanics: Theory and Experiment, 2017
We study quantum measurements of temporal equilibrium fluctuations in macroscopic quantum systems. It is shown that the fluctuation-dissipation theorem, as a relation between observed quantities, is partially violated in quantum systems, even if measurements are made in an ideal way that emulates classical ideal measurements as closely as possible ...
Akira Shimizu, Kyota Fujikura
openalex   +5 more sources

The Fractal Geometry of Growth: Fluctuation–Dissipation Theorem and Hidden Symmetry [PDF]

open access: goldFrontiers in Physics, 2021
Growth in crystals can be usually described by field equations such as the Kardar-Parisi-Zhang (KPZ) equation. While the crystalline structure can be characterized by Euclidean geometry with its peculiar symmetries, the growth dynamics creates a fractal ...
Petrus H. R. dos Anjos   +5 more
doaj   +2 more sources

Can Quantum Regression Theorem Be Reconciled with Quantum Fluctuation Dissipation Theorem ? [PDF]

open access: bronze, 2003
In the attempt to derive the regression theorem from the fluctuation dissipation theorem several authors claim the violation of the former theorem in the quantum case.
P. Shiktorov
openalex   +3 more sources

Nonequilibrium fluctuation-dissipation theorem and heat production [PDF]

open access: yesPhysical Review Letters, 2014
We use a relationship between response and correlation function in nonequilibrium systems to establish a connection between the heat production and the deviations from the equilibrium fluctuation-dissipation theorem.
Baiesi, M., Lippiello, E., Sarracino, A.
core   +6 more sources

Generalized Langevin equation and the fluctuation-dissipation theorem for particle-bath systems in a harmonic field

open access: goldResults in Physics, 2019
The generalized Langevin equation (GLE) is extended to the case when not only the tagged particle but also the surrounding bath particles respond to the external harmonic potential K(x).
Vladimír Lisý, Jana Tóthová
doaj   +2 more sources

Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem [PDF]

open access: yesScientific Reports, 2018
A self-consistent kinetic theory of Thomson scattering of an electromagnetic field by a non-uniform plasma is derived. We draw the readers’ attention to the inconsistency in recent results on the Thomson scattering in inhomogeneous plasma, which leads to
V. V. Belyi
doaj   +2 more sources

Fluctuation-dissipation theorem and the dynamical renormalization group [PDF]

open access: greenJournal of Statistical Physics, 1996
8 pages, Revtex 3.0, no figures, to appear in J. Stat.
Achille Giacometti   +3 more
openalex   +4 more sources

Fluctuation-Dissipation Theorem in Nonequilibrium Steady States [PDF]

open access: yesEPL (Europhysics Letters), 2009
In equilibrium, the fluctuation-dissipation theorem (FDT) expresses the response of an observable to a small perturbation by a correlation function of this variable with another one that is conjugate to the perturbation with respect to \emph{energy}. For
Chetrite R.   +7 more
core   +2 more sources

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