|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Fluctuation-Dissipation Relations in the absence of Detailed Balance: formalism and applications to Active Matter | | Sara Dal Cengio
; Demian Levis
; Ignacio Pagonabarraga
; | | Date: |
14 Jul 2020 | | 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 variables under Time-Reversal, we exploit the
relation between entropy production and the breakdown of Detailed Balance to
establish general constraints on the non-equilibrium steady-states (NESS),
which relate the non-equilibrium character of the dynamics with symmetry
properties of the NESS distribution. This provides a direct route to derive
extended Fluctuation-Dissipation Relations, expressing the linear response
function in terms of NESS correlations. Such framework provides a unified way
to understand the departure from equilibrium of active systems and its linear
response. We then consider two paradigmatic models of interacting
self-propelled particles, namely Active Brownian Particles (ABP) and Active
Ornstein-Uhlenbeck Particles (AOUP). We analyze the non-equilibrium character
of these systems (also within a Markov and a Chapman-Enskog approximation) and
derive extended Fluctuation-Dissipation Relations for them, clarifying which
features of these active model systems are genuinely non-equilibrium. | | Source: | arXiv, 2007.7322 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER