Article (Scientific journals)
Collective Power: Minimal Model for Thermodynamics of Nonequilibrium Phase Transitions
Herpich, Tim; Thingna, Juzar; Esposito, Massimiliano
2018In Physical Review X, 8 (3), p. 031056
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Keywords :
Stochastic Thermodynamics; Synchronization; Complex Systems
Abstract :
[en] We propose a thermodynamically consistent minimal model to study synchronization which is made of driven and interacting three-state units. This system exhibits at the mean-field level two bifurcations separating three dynamical phases: a single stable fixed point, a stable limit cycle indicative of synchronization, and multiple stable fixed points. These complex emergent dynamical behaviors are understood at the level of the underlying linear Markovian dynamics in terms of metastability, i.e. the appearance of gaps in the upper real part of the spectrum of the Markov generator. Stochastic thermodynamics is used to study the dissipated work across dynamical phases as well as across scales. This dissipated work is found to be reduced by the attractive interactions between the units and to nontrivially depend on the system size. When operating as a work-to- work converter, we find that the maximum power output is achieved far-from-equilibrium in the synchronization regime and that the efficiency at maximum power is surprisingly close to the linear regime prediction. Our work shows the way towards building a thermodynamics of nonequilibrium phase transitions in conjunction to bifurcation theory.
Disciplines :
Physics
Author, co-author :
Herpich, Tim ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Thingna, Juzar
Esposito, Massimiliano  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
no
Language :
English
Title :
Collective Power: Minimal Model for Thermodynamics of Nonequilibrium Phase Transitions
Publication date :
07 September 2018
Journal title :
Physical Review X
ISSN :
2160-3308
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
8
Issue :
3
Pages :
031056
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
FnR Project :
FNR11271777 - Improving Energy Conversion By Synchronization, 2016 (01/04/2016-31/03/2020) - Tim Herpich
Available on ORBilu :
since 11 September 2018

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