Collective dynamics out of thermodynamic equilibrium

Gordon Robb, Antonio Politi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Thorough numerical studies reveal that spatially extended dissipative systems with long-range interactions may give rise to a large-scale dynamics. This phenomenon, which generalizes mean-field chaos, can be interpreted as a form of subtle pattern formation, where a chaotic microscopic dynamics coexists with a macroscopic irregular behavior, sustained by the spontaneous emergence of long-wavelength ``hydrodynamic" modes. This regime can emerge only if the coupling is sufficiently long-ranged; otherwise normal space-time chaos is observed. In Stuart-Landau oscillators a further regime is found, where the amplitude of the hydrodynamic modes exhibits an anomalous intermediate scaling between that of collective and standard space-time chaos.
Original languageEnglish
Article number040201(R)
JournalPhysical Review. E, Statistical, Nonlinear and Soft Matter Physics
Volume95
Issue number4
DOIs
Publication statusPublished - 3 Apr 2017

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Thermodynamic Equilibrium
thermodynamic equilibrium
Hydrodynamic Modes
chaos
Chaos
Space-time
hydrodynamics
Extended Systems
Dissipative Systems
Long-range Interactions
Chaotic Dynamics
Pattern Formation
Mean Field
Anomalous
Irregular
Numerical Study
oscillators
Scaling
Wavelength
scaling

Cite this

Collective dynamics out of thermodynamic equilibrium. / Robb, Gordon ; Politi, Antonio.

In: Physical Review. E, Statistical, Nonlinear and Soft Matter Physics, Vol. 95, No. 4, 040201(R), 03.04.2017.

Research output: Contribution to journalArticle

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