Results 21 to 30 of about 1,013 (253)

Fluctuation theorem for stochastic systems [PDF]

open access: yesPhysical Review E, 1999
Minor changes; typos corrected; accepted by Physical Review ...
Evans, Denis, Searles, Debra J
openaire   +5 more sources

The Fluctuation Theorem

open access: yesAdvances in Physics, 2002
The question of how reversible microscopic equations of motion can lead to irreversible macroscopic behaviour has been one of the central issues in statistical mechanics for more than a century. The basic issues were known to Gibbs. Boltzmann conducted a very public debate with Loschmidt and others without a satisfactory resolution.
J. Evans, Denis, Bernhardt, Debra
openaire   +4 more sources

Fluctuation theorems: Work is not an observable [PDF]

open access: yesPhysical Review E, 2007
The characteristic function of the work performed by an external time-dependent force on a Hamiltonian quantum system is identified with the time-ordered correlation function of the exponentiated system's Hamiltonian. A similar expression is obtained for the averaged exponential work which is related to the free energy difference of equilibrium systems
Talkner, Peter   +2 more
openaire   +4 more sources

Fluctuation Theorem Uncertainty Relation [PDF]

open access: yesPhysical Review Letters, 2019
6 pages, 2 figures; 9 pages of supplemental material with 4 ...
Yoshihiko Hasegawa, Tan Van Vu
openaire   +3 more sources

Stochastic Thermodynamics of a Finite Quantum System Coupled to Two Heat Baths

open access: yesEntropy, 2023
We consider a situation where an N-level system (NLS) is coupled successively to two heat baths with different temperatures without being necessarily thermalized and approaches a steady state. For this situation we apply a general Jarzynski-type equation
Heinz-Jürgen Schmidt, Jochen Gemmer
doaj   +1 more source

Three Detailed Fluctuation Theorems [PDF]

open access: yesPhysical Review Letters, 2010
4 pages, V2: accepted in Phys. Rev. Lett. 104, 090601 (2010)
Esposito, Massimiliano   +1 more
openaire   +5 more sources

Relativistic fluctuation theorems [PDF]

open access: yesComptes Rendus. Physique, 2007
To reveal how nonequilibrium physics and relativity theory intertwine, this article studies relativistic Brownian motion under cosmic expansion. Two fluctuation theorems for the entropy Δ s , which is locally produced in this extreme nonequilibrium situation, are presented and proven.
openaire   +3 more sources

Harnessing fluctuations in thermodynamic computing via time-reversal symmetries

open access: yesPhysical Review Research, 2021
We experimentally demonstrate that highly structured distributions of work emerge during even the simple task of erasing a single bit. These are signatures of a refined suite of time-reversal symmetries in distinct functional classes of microscopic ...
Gregory Wimsatt   +6 more
doaj   +1 more source

Fluctuation Dissipation Theorem [PDF]

open access: yesPhysical Review, 1956
The fluctuation dissipation theorem (Nyquist formula) is shown to be exact and a number of generalizations of it are given, including a four-dimensional formulation which is useful in the quantum theory of fields. The more general theorem can be used to calculate vacuum expectation values of field operators, and to deduce covariant commutation ...
openaire   +2 more sources

The Kawasaki identity and the Fluctuation Theorem [PDF]

open access: yesThe Journal of Chemical Physics, 2004
In this paper we show that the Fluctuation Theorem of Evans and Searles [D. J. Evans, D. J. Searles, Phys. Rev. E 50, 1645 (1994)] implies that the Kawasaki function 〈exp(−Ωt)〉 is unity for all time t. We confirm this relationship using experimental data obtained using optical tweezers, and show that the Kawasaki function is a valuable diagnostic tool.
Carberry, D. M.   +4 more
openaire   +4 more sources

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