Results 41 to 50 of about 106,692 (280)

Nonequilibrium potential and fluctuation theorems for quantum maps [PDF]

open access: yes, 2015
We derive a general fluctuation theorem for quantum maps. The theorem applies to a broad class of quantum dynamics, such as unitary evolution, decoherence, thermalization, and other types of evolution for quantum open systems. The theorem reproduces well-
Horowitz, Jordan M.   +2 more
core   +3 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

Ensemble Dependence of the Transient Fluctuation Theorem [PDF]

open access: yes, 2015
The Fluctuation Theorem gives an analytical expression for the probability of observing second law violating dynamical fluctuations, in nonequilibrium systems. At equilibrium statistical mechanical fluctuations are known to be ensemble dependent.
Evans, Denis J., Searles, Debra J.
core   +3 more sources

Testing the Steady-State Fluctuation Relation in the Solar Photospheric Convection

open access: yesEntropy, 2020
The turbulent thermal convection on the Sun is an example of an irreversible non-equilibrium phenomenon in a quasi-steady state characterized by a continuous entropy production rate.
Giorgio Viavattene   +7 more
doaj   +1 more source

Fluctuation theorems for autonomous work. [PDF]

open access: yesProc Natl Acad Sci U S A
Classical fluctuation theorems for work have been obtained theoretically, and verified experimentally, within a nonautonomous framework in which work is performed on a system of interest, S , by the ...
Jarzynski C, Deffner S, Rahav S.
europepmc   +3 more sources

Fluctuation theorems for quantum master equations [PDF]

open access: yes, 2006
A quantum fluctuation theorem for a driven quantum subsystem interacting with its environment is derived based solely on the assumption that its reduced density matrix obeys a closed evolution equation i.e. a quantum master equation (QME).
Esposito, Massimiliano, Mukamel, Shaul
core   +2 more sources

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

Fluctuation theorems for excess and housekeeping heats for underdamped systems

open access: yes, 2014
We present a simple derivation of the integral fluctuation theorems for excess housekeeping heat for an underdamped Langevin system, without using the concept of dual dynamics.
Jayannavar, A. M., Lahiri, Sourabh
core   +1 more source

Fluctuation theorem applied to Dictyostelium discoideum system [PDF]

open access: yes, 2007
In this paper, we analyze the electrotactic movement of Dictyostelium discoideum from the viewpoint of non-equilibrium statistical mechanics. Because we can observe fluctuating behavior of cellular trajectories, we analyze the probability distribution of
Ciliberto S.   +9 more
core   +1 more source

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