The fluctuation–dissipation theorem used as a proxy for damping variations in real engineering structures
Sign Up to like & getrecommendations! Published in 2018 at "Engineering Structures"
DOI: 10.1016/j.engstruct.2018.04.012
Abstract: Abstract The damping ratio and the resonance frequency represent relevant health indicators in structural health monitoring, and they are key parameters in the design of buildings. The combination of two modal parameters (i.e., damping, frequency)… read more here.
Keywords: frequency; dissipation theorem; engineering structures; fluctuation dissipation ... See more keywords
A Lagrangian fluctuation–dissipation relation for scalar turbulence. Part I. Flows with no bounding walls
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.567
Abstract: An exact relation is derived between scalar dissipation due to molecular diffusivity and the randomness of stochastic Lagrangian trajectories for flows without bounding walls. This ‘Lagrangian fluctuation–dissipation relation’ equates the scalar dissipation for either passive… read more here.
Keywords: scalar dissipation; dissipation; relation; dissipation relation ... See more keywords
Memory-less response and violation of the fluctuation-dissipation theorem in colloids suspended in an active bath
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-17900-2
Abstract: We investigate experimentally and numerically the stochastic dynamics and the time-dependent response of colloids subject to a small external perturbation in a dense bath of motile E. coli bacteria. The external field is a magnetic… read more here.
Keywords: dissipation theorem; bath; response; violation fluctuation ... See more keywords
Fluctuation–dissipation relations in the absence of detailed balance: formalism and applications to active matter
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/abee22
Abstract: We present a comprehensive study about the relationship between the way detailed balance is broken in non-equilibrium systems and the resulting violations of the fluctuation–dissipation theorem. Starting from stochastic dynamics with both odd and even… read more here.
Keywords: dissipation relations; detailed balance; non equilibrium; fluctuation ... See more keywords
Accurate total energies from the adiabatic-connection fluctuation-dissipation theorem
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.125126
Abstract: N. D. Woods, ∗ M. T. Entwistle, and R. W. Godby Theory of Condensed Matter, Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, United Kingdom FU Berlin, Department of Mathematics and Computer Science, Arnimallee 12,… read more here.
Keywords: fluctuation dissipation; accurate total; energies adiabatic; connection fluctuation ... See more keywords
Work exchange, geometric magnetization, and fluctuation-dissipation relations in a quantum dot under adiabatic magnetoelectric driving
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.115424
Abstract: We study the adiabatic dynamics of the charge, spin and energy of a quantum dot with a Coulomb interaction under two-parameter driving, associated to time-dependent gate voltage and magnetic field. The quantum dot is coupled… read more here.
Keywords: exchange; fluctuation dissipation; quantum dot; dissipation relations ... See more keywords
Fluctuation-dissipation relation for open quantum systems in a nonequilibrium steady state
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.105006
Abstract: Continuing our work on the nature and existence of fluctuation-dissipation relations (FDR) in linear and nonlinear open quantum systems [1-3], here we consider such relations when a linear system is in a nonequilibrium steady state… read more here.
Keywords: fluctuation dissipation; nonequilibrium steady; dissipation; open quantum ... See more keywords
Fluctuation-dissipation relation in accelerated frames
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.045003
Abstract: An uniformly accelerated (Rindler) observer will detect particles in the Minkowski vacuum, known as Unruh effect. The spectrum is thermal and the temperature is given by that of the Killing horizon, which is proportional to… read more here.
Keywords: accelerated frames; relation accelerated; dissipation relation; fluctuation dissipation ... See more keywords
Handy fluctuation-dissipation relation to approach generic noisy systems and chaotic dynamics.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review. E"
DOI: 10.1103/physreve.104.l032101
Abstract: We introduce a general formulation of the fluctuation-dissipation relations (FDRs) holding also in far-from-equilibrium stochastic dynamics. A great advantage of this version of the FDR is that it does not require explicit knowledge of the… read more here.
Keywords: handy fluctuation; fluctuation dissipation; fluctuation; dissipation relation ... See more keywords
Nonequilibrium nature of adaptation in bacterial chemotaxis: A fluctuation-dissipation theorem approach.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.95.042116
Abstract: Adaptation is a crucial biological function possessed by many sensory systems. In this paper, we show that the fluctuation-dissipation theorem (FDT) serves as an ideal mathematical tool to study adaptation. With the aid of the… read more here.
Keywords: dissipation theorem; nonequilibrium nature; fluctuation dissipation; adaptation ... See more keywords
Fluctuation-Dissipation Relations for Spiking Neurons.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.198101
Abstract: Spontaneous fluctuations and stimulus response are essential features of neural functioning, but how they are connected is poorly understood. I derive fluctuation-dissipation relations (FDR) between the spontaneous spike and voltage correlations and the firing rate… read more here.
Keywords: spiking neurons; relations spiking; dissipation relations; fluctuation dissipation ... See more keywords