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  Phase separation in driven granular gases: Exploring the elusive character of nonequilibrium steady states.

Herminghaus, S., & Mazza, M. G. (2017). Phase separation in driven granular gases: Exploring the elusive character of nonequilibrium steady states. Soft Matter, 13(5), 898-910. doi:10.1039/C6SM02224C.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-4133-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-3E13-A
Genre: Journal Article

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 Creators:
Herminghaus, Stephan1, Author              
Mazza, Marco G.2, Author              
Affiliations:
1Group Granular matter and irreversibility, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063306              
2Group Non-equilibrium soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063308              

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 Abstract: The emergence of patterns and phase separation in many-body systems far from thermal equilibrium is discussed using the example of driven granular gases. It is shown that phase separation follows a similar mechanism as in the systems of active Brownian particles. Depending on the quantities chosen for observation, it may or may not be easy to find functionals analogous to the free energy in equilibrium statistical physics. We argue that although such functionals can always be derived from the dynamics, it is of only limited value for predicting relevant aspects of the nonequilibrium steady state of the system. Consequently, although there is indeed a ‘principle’ governing the selection of collective nonequilibrium steady states (and the corresponding large deviation functional can be identified), it is not generally useful for predicting the behaviour of the system.

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Language(s): eng - English
 Dates: 2016-12-092017-02-07
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1039/C6SM02224C
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Title: Soft Matter
Source Genre: Journal
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Pages: - Volume / Issue: 13 (5) Sequence Number: - Start / End Page: 898 - 910 Identifier: ISSN: 1744-683X