Results 61 to 70 of about 106,692 (280)

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

Physical 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, Dolores Bozovic, Alex J. Levine   +2 more
doaj   +1 more source

Fluctuation theorem for stochastic dynamics

, 1998
The fluctuation theorem of Gallavotti and Cohen holds for finite systems undergoing Langevin dynamics. In such a context all non-trivial ergodic theory issues are by-passed, and the theorem takes a particularly simple form.
Bouchaud J-P, De Groot S R, Gallavotti G, Gallavotti G, Jorge Kurchan, Kubo R, LeDoussal P, Risken H, Sinai Y G, Sinai Y G   +9 more
core   +3 more sources

Ensembles, turbulence and fluctuation theorem [PDF]

The European Physical Journal E, 2020
The fluctuation theorem is considered intrinsically linked to reversibility and therefore its phenomenological consequence, the fluctuation relation, is sometimes considered not applicable. Nevertheless here is considered the paradigmatic example of irreversible evolution, the 2D Navier-Stokes incompressible flow, to show how universal properties of ...
openaire   +2 more sources

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

Quasiprobability fluctuation theorem behind the spread of quantum information

Communications Physics
Information spreads in time. For example, correlations dissipate when the correlated system locally couples to a third party, such as the environment. This simple but important fact forms the known quantum data-processing inequality.
Kun Zhang, Jin Wang
doaj   +1 more source

Information Exchange Fluctuation Theorem Under Coarse-Graining

Mathematics
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

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

, 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, G. L. Sewell, H. B. Callen, H. Ooguri, Hiroaki Terashima, J. R. Anglin, K. Fujikawa, K. Fujikawa, M. Horibe, M. Soffel, P. C. Martin, P. C. W. Davies, R. Kubo, R. M. Wald, R. P. Feynman, S. A. Fulling, S. M. Christensen, S. Takagi, S. W. Hawking, W. G. Unruh, W. G. Unruh, W. G. Unruh, W. Israel, W. Rindler, W. Troost   +24 more
core   +3 more sources

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

Advanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan, Chenglin Han, Kuan He, Chadi Ellouzi, Yunlong Wang, Li‐Qun Chen, Jie Sun, Zhaodong Xu, Chen Shen, Tianzhi Yang   +9 more
wiley   +1 more source

Time-dependent fluctuation theorem [PDF]

Physical Review E, 2003
The fluctuation theorem (FT) is a generalization of the second law of thermodynamics that applies to small systems observed for short times. For thermostated systems it gives the probability ratio that entropy will be consumed rather than produced. In the present paper, we propose a version of the FT that applies to thermostated dissipative systems ...
Mittag, Emil, Evans, Denis
openaire   +3 more sources