Results 51 to 60 of about 487,019 (287)

Using the fluctuation-dissipation theorem for nonconservative forces

open access: yesPhysical Review Research, 2019
An equilibrium system which is perturbed by an external potential relaxes to a new equilibrium state, a process obeying the fluctuation-dissipation theorem.
Kiryl Asheichyk, Matthias Krüger
doaj   +1 more source

Generalized Langevin equation and the fluctuation-dissipation theorem for particle-bath systems in a harmonic field

open access: yesResults in Physics, 2019
The generalized Langevin equation (GLE) is extended to the case when not only the tagged particle but also the surrounding bath particles respond to the external harmonic potential K(x).
Vladimír Lisý, Jana Tóthová
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   +4 more sources

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Detailed fluctuation theorem for mesoscopic modeling [PDF]

open access: yes, 2004
\u3cp\u3eThe detailed fluctuation theorem is derived. The basic assumptions are phase space incompressibility (Liouville’s theorem) and time reversibility on the microscopic level. The theorem relates the conditional probability to end up in a mesoscopic
Peters, E.A.J.F.; id_orcid
core   +1 more source

Microcanonical quantum fluctuation theorems [PDF]

open access: yesPhysical Review E, 2008
Previously derived expressions for the characteristic function of work performed on a quantum system by a classical external force are generalized to arbitrary initial states of the considered system and to Hamiltonians with degenerate spectra. In the particular case of microcanonical initial states explicit expressions for the characteristic function ...
Talkner, Peter   +2 more
openaire   +3 more sources

Information Exchange Fluctuation Theorem Under Coarse-Graining

open access: yesMathematics
The fluctuation theorem for information exchange, originally established by Sagawa and Ueda, provides a fundamental framework for understanding the role of correlations in coupled classical stochastic systems.
Lee Jinwoo
doaj   +1 more source

Violation of generalized fluctuation-dissipation theorem in biological limit cycle oscillators with state-dependent internal drives: Applications to hair cell oscillations

open access: yesPhysical Review Research, 2021
The spontaneously oscillating hair bundle of sensory cells in the inner ear is an example of a stochastic, nonlinear oscillator driven by internal active processes.
Janaki Sheth   +2 more
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Fluctuation theorems for a molecular refrigerator [PDF]

open access: yesPhysical Review E, 2007
We extend fluctuation theorems to a molecular refrigeration system that consists of Brownian particles in a heat bath under feedback control of their velocities. Such control can actively remove heat from the bath due to an entropy-pumping mechanism [Phys. Rev. Lett. 93, 120602 (2004)].
Kyung Hyuk, Kim, Hong, Qian
openaire   +2 more sources

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