Results 21 to 30 of about 23,766 (167)

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

Finite bath fluctuation theorem [PDF]

open access: yesPhysical Review E, 2009
We demonstrate that a Finite Bath Fluctuation Theorem of the Crooks type holds for systems that have been thermalized via weakly coupling it to a bath with energy independent finite specific heat. We show that this theorem reduces to the known canonical and microcanonical fluctuation theorems in the two respective limiting cases of infinite and ...
Campisi, Michele   +2 more
openaire   +5 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

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.
Benoît Mahault   +2 more
openaire   +5 more sources

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   +3 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 Δs, which is locally produced in this extreme nonequilibrium situation, are presented and proven.
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

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   +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

Home - About - Disclaimer - Privacy