Results 41 to 50 of about 107,786 (317)

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

Time-dependent fluctuation theorem [PDF]

open access: yesPhysical Review E, 2003
The fluctuation theorem (FT) is a generalization of the second law of thermodynamics that applies to small systems observed for short times. For thermostated systems it gives the probability ratio that entropy will be consumed rather than produced. In the present paper, we propose a version of the FT that applies to thermostated dissipative systems ...
Mittag, Emil, Evans, Denis
openaire   +3 more sources

Fluctuation-dissipation theorem for non-equilibrium quantum systems [PDF]

open access: yesQuantum, 2018
The fluctuation-dissipation theorem (FDT) is a central result in statistical physics, both for classical and quantum systems. It establishes a relationship between the linear response of a system under a time-dependent perturbation and time correlations ...
Mohammad Mehboudi   +2 more
doaj   +1 more source

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 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 theorems from Bayesian retrodiction [PDF]

open access: yesPhysical Review E, 2021
Quantitative studies of irreversibility in statistical mechanics often involve the consideration of a reverse process, whose definition has been the object of many discussions, in particular for quantum mechanical systems. Here we show that the reverse channel very naturally arises from Bayesian retrodiction, both in classical and quantum theories ...
Francesco Buscemi, Valerio Scarani
openaire   +3 more sources

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   +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   +1 more source

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

Entropy production of a closed Hamiltonian system via the detailed fluctuation relation

open access: yesPhysical Review Research, 2021
We revisit the problem of emergent irreversibility in a closed Hamiltonian system in light of the detailed fluctuation relation by invoking an imperfect Loschmidt demon that performs a time-reversal operation with a finite precision.
YĆ»to Murashita   +2 more
doaj   +1 more source

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