Results 61 to 70 of about 1,674,824 (289)
Relativistic fluctuation theorems [PDF]
Comptes 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.
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The Kawasaki identity and the Fluctuation Theorem [PDF]
The 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
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Harnessing fluctuations in thermodynamic computing via time-reversal symmetries
Physical 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
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Fluctuation-Dissipation Theorems for Multiphase Flow in Porous Media
Entropy, 2021 A thermodynamic description of porous media must handle the size- and shape-dependence of media properties, in particular on the nano-scale. Such dependencies are typically due to the presence of immiscible phases, contact areas and contact lines.
Dick Bedeaux, Signe Kjelstrup
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Stochastic thermodynamics and fluctuation theorems for non-linear systems
New Journal of Physics, 2021 We extend stochastic thermodynamics by relaxing the two assumptions that the Markovian dynamics must be linear and that the equilibrium distribution must be a Boltzmann distribution.
Jan Korbel, David H Wolpert
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Entropy Production and Fluctuation Theorems for Active Matter. [PDF]
Physical Review Letters, 2017 Active biological systems reside far from equilibrium, dissipating heat even in their steady state, thus requiring an extension of conventional equilibrium thermodynamics and statistical mechanics.
Dibyendu Mandal, K. Klymko, M. DeWeese
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Fluctuation theorem between non-equilibrium states in an RC circuit
New 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
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Fluctuation theorems for continuous quantum measurements and absolute irreversibility [PDF]
Physical Review A, 2018 Fluctuation theorems are relations constraining the out-of-equilibrium fluctuations of thermodynamic quantities like the entropy production that were initially introduced for classical or quantum systems in contact with a thermal bath.
S. Manikandan, C. Elouard, A. Jordan
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Fluctuation Dissipation Theorem [PDF]
Physical 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 ...
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Fluctuation theorem and chaos [PDF]
The European Physical Journal B, 2008 The heat theorem (i.e. the second law of thermodynamics or the existence of entropy) is a manifestation of a general property of hamiltonian mechanics and of the ergodic Hypothesis. In nonequilibrium thermodynamics of stationary states the chaotic hypothesis plays a similar role: it allows a unique determination of the probability distribution (called {
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