Generalized thermodynamics of motility-induced phase separation : Phase equilibria, Laplace pressure, and change of ensembles
(2018) In New Journal of Physics 20(7).- Abstract
Motility-induced phase separation leads to cohesive active matter in the absence of cohesive forces. We present, extend and illustrate a recent generalized thermodynamic formalism which accounts for its binodal curve. Using this formalism, we identify both a generalized surface tension, that controls finite-size corrections to coexisting densities, and generalized forces, that can be used to construct new thermodynamic ensembles. Our framework is based on a non-equilibrium generalization of the Cahn-Hilliard equation and we discuss its application to active particles interacting either via quorum-sensing interactions or directly through pairwise forces.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/451888c0-9eeb-4f99-88b6-cd16a60fe867
- author
- Solon, Alexandre P. ; Stenhammar, Joakim LU ; Cates, Michael E. ; Kafri, Yariv and Tailleur, Julien
- organization
- publishing date
- 2018-07-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- active matter, motility-induced phase separation, non-equilibrium statistical mechanics
- in
- New Journal of Physics
- volume
- 20
- issue
- 7
- article number
- 075001
- publisher
- IOP Publishing
- external identifiers
-
- scopus:85051678602
- ISSN
- 1367-2630
- DOI
- 10.1088/1367-2630/aaccdd
- language
- English
- LU publication?
- yes
- id
- 451888c0-9eeb-4f99-88b6-cd16a60fe867
- date added to LUP
- 2018-09-11 14:29:07
- date last changed
- 2022-04-25 17:05:58
@article{451888c0-9eeb-4f99-88b6-cd16a60fe867, abstract = {{<p>Motility-induced phase separation leads to cohesive active matter in the absence of cohesive forces. We present, extend and illustrate a recent generalized thermodynamic formalism which accounts for its binodal curve. Using this formalism, we identify both a generalized surface tension, that controls finite-size corrections to coexisting densities, and generalized forces, that can be used to construct new thermodynamic ensembles. Our framework is based on a non-equilibrium generalization of the Cahn-Hilliard equation and we discuss its application to active particles interacting either via quorum-sensing interactions or directly through pairwise forces.</p>}}, author = {{Solon, Alexandre P. and Stenhammar, Joakim and Cates, Michael E. and Kafri, Yariv and Tailleur, Julien}}, issn = {{1367-2630}}, keywords = {{active matter; motility-induced phase separation; non-equilibrium statistical mechanics}}, language = {{eng}}, month = {{07}}, number = {{7}}, publisher = {{IOP Publishing}}, series = {{New Journal of Physics}}, title = {{Generalized thermodynamics of motility-induced phase separation : Phase equilibria, Laplace pressure, and change of ensembles}}, url = {{http://dx.doi.org/10.1088/1367-2630/aaccdd}}, doi = {{10.1088/1367-2630/aaccdd}}, volume = {{20}}, year = {{2018}}, }