Results 41 to 50 of about 1,674,824 (289)

Large deviations and fluctuation theorems for cycle currents defined in the loop-erased and spanning tree manners: A comparative study

open access: yesPhysical Review Research, 2023
The cycle current is a crucial quantity in stochastic thermodynamics. The absolute and net cycle currents of a Markovian system can be defined in the loop-erased (LE) or spanning tree (ST) manner.
Yuhao Jiang, Bingjie Wu, Chen Jia
doaj   +1 more source

Crooks Fluctuation Theorem for Single Polymer Dynamics in Time-Dependent Flows: Understanding Viscoelastic Hysteresis

open access: yesEntropy, 2021
Nonequilibrium work relations have fundamentally advanced our understanding of molecular processes. In recent years, fluctuation theorems have been extensively applied to understand transitions between equilibrium steady-states, commonly described by ...
Yuecheng Zhou   +2 more
doaj   +1 more source

Extension of the Fluctuation Theorem [PDF]

open access: yesPhysical Review Letters, 2003
Heat fluctuations are studied in a dissipative system with both mechanical and stochastic components for a simple model: a Brownian particle dragged through water by a moving potential. An extended stationary state fluctuation theorem is derived. For infinite time, this reduces to the conventional fluctuation theorem only for small fluctuations; for ...
van Zon, R., Cohen, E. G. D.
openaire   +3 more sources

A topological fluctuation theorem

open access: yesNature Communications, 2022
AbstractFluctuation theorems specify the non-zero probability to observe negative entropy production, contrary to a naive expectation from the second law of thermodynamics. For closed particle trajectories in a fluid, Stokes theorem can be used to give a geometric characterization of the entropy production.
Mahault, B, Tang, E, Golestanian, R
openaire   +6 more sources

Experimental Validation of Fully Quantum Fluctuation Theorems Using Dynamic Bayesian Networks. [PDF]

open access: yesPhysical Review Letters, 2020
Fluctuation theorems are fundamental extensions of the second law of thermodynamics for small systems. Their general validity arbitrarily far from equilibrium makes them invaluable in nonequilibrium physics.
Kaonan Micadei   +7 more
semanticscholar   +1 more source

Hydrodynamics and the Fluctuation Theorem [PDF]

open access: yesPhysical Review Letters, 2011
4 pages, 3 figures, to appear on Physical Review ...
M. Belushkin, LIVI, ROBERTO, G. Foffi
openaire   +5 more sources

Fluctuation theorems from Bayesian retrodiction. [PDF]

open access: yesPhysical Review E, 2020
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.
F. Buscemi, V. Scarani
semanticscholar   +1 more source

The instantaneous fluctuation theorem [PDF]

open access: yesThe Journal of Chemical Physics, 2013
We give a derivation of a new instantaneous fluctuation relation for an arbitrary phase function which is odd under time reversal. The form of this new relation is not obvious, and involves observing the system along its transient phase space trajectory both before and after the point in time at which the fluctuations are being compared. We demonstrate
Petersen, Charlotte F.   +2 more
openaire   +4 more sources

A local fluctuation theorem [PDF]

open access: yesThe Journal of Chemical Physics, 2001
The fluctuation theorem gives an analytic expression for the probability, in a nonequilibrium system of finite size observed for a finite time, that the dissipative flux will flow in the reverse direction to that required by the second law of thermodynamics. In the present paper a local version of the fluctuation theorem (LFT) is derived heuristically.
Ayton, G, Evans, DJ, Searles, DJ
openaire   +4 more sources

Quantum Fluctuation Theorems beyond Two-Point Measurements. [PDF]

open access: yesPhysical Review Letters, 2019
We derive detailed and integral quantum fluctuation theorems for heat exchange in a quantum correlated bipartite thermal system using the framework of dynamic Bayesian networks.
Kaonan Micadei, G. Landi, E. Lutz
semanticscholar   +1 more source

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