Results 51 to 60 of about 23,766 (167)

Transient quantum fluctuation theorems and generalized measurements

New Journal of Physics, 2014
The transient quantum fluctuation theorems of Crooks and Jarzynski restrict and relate the statistics of work performed in forward and backward forcing protocols.
B Prasanna Venkatesh, Gentaro Watanabe, Peter Talkner   +2 more
doaj   +1 more source

The fluctuation theorem and Lyapunov weights

, 2003
The Fluctuation Theorem (FT) is a generalisation of the Second Law of Thermodynamics that applies to small systems observed for short times. For thermostatted systems it gives the probability ratio that entropy will be consumed rather than produced.
Crooks, Crooks, Debra J Searles, Denis J Evans, Evans, Evans, Evans, Evans, Evans, Evans, Gallavotti, Gallavotti, Hatano, Hummer, Jarzynski, Lebowitz, Maes, Mittag, Owen Jepps, Searles, Searles, Searles, Searles, Wang   +23 more
core   +1 more source

(Non) equilibrium dynamics: a (broken) symmetry of the Keldysh generating functional

SciPost Physics, 2018
We unveil the universal (model-independent) symmetry satisfied by Schwinger-Keldysh quantum field theories whenever they describe equilibrium dynamics.
Camille Aron, Giulio Biroli, Leticia F. Cugliandolo
doaj   +1 more source

Quantum-Heat Fluctuation Relations in Three-Level Systems Under Projective Measurements

Condensed Matter, 2020
We study the statistics of energy fluctuations in a three-level quantum system subject to a sequence of projective quantum measurements. We check that, as expected, the quantum Jarzynski equality holds provided that the initial state is thermal.
Guido Giachetti, Stefano Gherardini, Andrea Trombettoni, Stefano Ruffo   +3 more
doaj   +1 more source

Fluctuation theorem in rachet system [PDF]

Journal of Physics A: Mathematical and General, 2004
Fluctuation Theorem(FT) has been studied as far from equilibrium theorem, which relates the symmetry of entropy production. To investigate the application of this theorem, especially to biological physics, we consider the FT for tilted rachet system. Under, natural assumption, FT for steady state is derived.
openaire   +2 more sources

Colloidal engines for innovative tests of information thermodynamics

Advances in Physics: X, 2020
Recent theoretical developments in information thermodynamics elucidated the link between the acquired information and the entropy production through measurement and feedback control by generalizing the fluctuation theorems and the second law of ...
Govind Paneru, Hyuk Kyu Pak
doaj   +1 more source

Linear response theory and transient fluctuation theorems for diffusion processes: a backward point of view

, 2009
On the basis of perturbed Kolmogorov backward equations and path integral representation, we unify the derivations of the linear response theory and transient fluctuation theorems for continuous diffusion processes from a backward point of view.
Bochkov G N, Cameron R H, Chernyak V, Chetrite R, Fei Liu, Gardiner C W, Harris R J, Huan Tong, Kac M, Karatzas I, Kubo R, Kurchan J, Kurchan J, Liu F, Maes C, Risken H, Rui Ma, Smoluchowski M V, Speck T, Speck T, Speck T, Stroock D W, Zhong-can Ou-Yang, Zinn-Justin J   +23 more
core   +1 more source

A test of "fluctuation theorem" in non-Markovian open quantum systems

, 2011
We study fluctuation theorems for open quantum systems with a non-Markovian heat bath using the approach of quantum master equations and examine the physical quantities that appear in those fluctuation theorems.
H.-P. Breuer, Naomichi Hatano, Tatsuro Kawamoto, U. Weiss   +3 more
core   +1 more source

Fluctuation theorems for quantum master equations [PDF]

, 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

Inflow rate, a time-symmetric observable obeying fluctuation relations

, 2015
While entropy changes are the usual subject of fluctuation theorems, we seek fluctuation relations involving time-symmetric quantities, namely observables that do not change sign if the trajectories are observed backward in time.
Baiesi, Marco, Falasco, Gianmaria
core   +1 more source