Results 31 to 40 of about 35,406 (311)

Design principles for enhancing phase sensitivity and suppressing phase fluctuations simultaneously in biochemical oscillatory systems

open access: yesNature Communications, 2018
Biochemical processes require both high sensitivity and low fluctuation which is incompatible with the fluctuation dissipation theorem. Here Fei et al. model biochemical oscillators to show how free energy dissipation leads to both a suppression of phase
Chenyi Fei   +3 more
doaj   +1 more source

Irreversible efficiency and Carnot theorem for heat engines operating with multiple heat baths in linear response regime

open access: yesPhysical Review Research, 2022
The Carnot theorem, one expression of the second law of thermodynamics, places a fundamental upper bound on the efficiency of heat engines operating between two heat baths.
Yuki Izumida
doaj   +1 more source

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

Fluctuation-dissipation theorem and the Unruh effect of scalar and Dirac fields [PDF]

open access: yes, 1999
We present a simple and systematic method to calculate the Rindler noise, which is relevant to the analysis of the Unruh effect, by using the fluctuation-dissipative theorem.
B. S. DeWitt   +24 more
core   +3 more sources

Fluctuation-dissipation theorem and quantum tunneling with dissipation [PDF]

open access: yes, 1998
We suggest to take the fluctuation-dissipation theorem of Callen and Welton as a basis to study quantum dissipative phenomena (such as macroscopic quantum tunneling) in a manner analogous to the Nambu-Goldstone theorem for spontaneous symmetry breakdown.
A. J. Bray   +17 more
core   +2 more sources

Fluctuation Dissipation Theorem and Electrical Noise Revisited [PDF]

open access: yesFluctuation and Noise Letters, 2019
The fluctuation dissipation theorem (FDT) is the basis for a microscopic description of the interaction between electromagnetic radiation and matter. By assuming the electromagnetic radiation in thermal equilibrium and the interaction in the linear-response regime, the theorem interrelates the macroscopic spontaneous fluctuations of an observable with
Reggiani, Lino, Alfinito, Eleonora
openaire   +3 more sources

Fluctuation-Dissipation Theorem for Event-Dominated Processes [PDF]

open access: yesPhysical Review Letters, 2007
We study a system whose dynamics are driven by non-Poisson, renewal, and nonergodic events. We show that external perturbations influencing the times at which these events occur violate the standard fluctuation-dissipation prescription due to renewal aging.
Allegrini, Paolo   +3 more
openaire   +3 more sources

Finite-dimensional colored fluctuation-dissipation theorem for spin systems

open access: yesAIP Advances, 2017
When nano-magnets are coupled to random external sources, their magnetization becomes a random variable, whose properties are defined by an induced probability density, that can be reconstructed from its moments, using the Langevin equation, for mapping ...
Stam Nicolis   +2 more
doaj   +1 more source

Focus on nonequilibrium fluctuation relations: from classical to quantum

open access: yesNew Journal of Physics, 2015
The fluctuation dissipation theorem is at the heart of equilibrium statistical mechanics. For a system away from thermal equilibrium, generalized nonequilibrium fluctuation relations have been found in recent years.
Dario Bercioux   +3 more
doaj   +1 more source

Monte Carlo simulation of nonequilibrium critical behavior of 3D Ising model [PDF]

open access: yesКомпьютерные исследования и моделирование, 2014
Investigation of influence of non-equilibrium initial states and structural disorder on characteristics of anomalous slow non-equilibrium critical behavior of three-dimensional Ising model is carried out.
Eugenii Anatolievich Pospelov   +2 more
doaj   +1 more source

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