How active forces influence nonequilibrium glass transitions
Dense assemblies of self-propelled particles undergo a nonequilibrium form of glassy dynamics. Physical intuition suggests that increasing departure from equilibrium due to active forces fluidifies a glassy system. We falsify this belief by devising a model of self-propelled particles where increasi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aa914e |
| _version_ | 1797750739170230272 |
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| author | Ludovic Berthier Elijah Flenner Grzegorz Szamel |
| author_facet | Ludovic Berthier Elijah Flenner Grzegorz Szamel |
| author_sort | Ludovic Berthier |
| collection | DOAJ |
| description | Dense assemblies of self-propelled particles undergo a nonequilibrium form of glassy dynamics. Physical intuition suggests that increasing departure from equilibrium due to active forces fluidifies a glassy system. We falsify this belief by devising a model of self-propelled particles where increasing departure from equilibrium can both enhance or depress glassy dynamics, depending on the chosen state point. We analyze a number of static and dynamic observables and suggest that the location of the nonequilibrium glass transition is primarily controlled by the evolution of two-point static density correlations due to active forces. The dependence of the density correlations on the active forces varies non-trivially with the details of the system, and is difficult to predict theoretically. Our results emphasize the need to develop an accurate liquid state theory for nonequilibrium systems. |
| first_indexed | 2024-03-12T16:37:13Z |
| format | Article |
| id | doaj.art-2b0c8c72a4c04d40bd585a114d6218f4 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:37:13Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-2b0c8c72a4c04d40bd585a114d6218f42023-08-08T14:48:38ZengIOP PublishingNew Journal of Physics1367-26302017-01-01191212500610.1088/1367-2630/aa914eHow active forces influence nonequilibrium glass transitionsLudovic Berthier0https://orcid.org/0000-0003-2059-702XElijah Flenner1Grzegorz Szamel2Laboratoire Charles Coulomb, UMR 5221 CNRS, Université Montpellier , Montpellier, FranceDepartment of Chemistry, Colorado State University , Fort Collins, CO 80523, United States of AmericaLaboratoire Charles Coulomb, UMR 5221 CNRS, Université Montpellier , Montpellier, France; Department of Chemistry, Colorado State University , Fort Collins, CO 80523, United States of AmericaDense assemblies of self-propelled particles undergo a nonequilibrium form of glassy dynamics. Physical intuition suggests that increasing departure from equilibrium due to active forces fluidifies a glassy system. We falsify this belief by devising a model of self-propelled particles where increasing departure from equilibrium can both enhance or depress glassy dynamics, depending on the chosen state point. We analyze a number of static and dynamic observables and suggest that the location of the nonequilibrium glass transition is primarily controlled by the evolution of two-point static density correlations due to active forces. The dependence of the density correlations on the active forces varies non-trivially with the details of the system, and is difficult to predict theoretically. Our results emphasize the need to develop an accurate liquid state theory for nonequilibrium systems.https://doi.org/10.1088/1367-2630/aa914eactive matterglass transitiontheory |
| spellingShingle | Ludovic Berthier Elijah Flenner Grzegorz Szamel How active forces influence nonequilibrium glass transitions New Journal of Physics active matter glass transition theory |
| title | How active forces influence nonequilibrium glass transitions |
| title_full | How active forces influence nonequilibrium glass transitions |
| title_fullStr | How active forces influence nonequilibrium glass transitions |
| title_full_unstemmed | How active forces influence nonequilibrium glass transitions |
| title_short | How active forces influence nonequilibrium glass transitions |
| title_sort | how active forces influence nonequilibrium glass transitions |
| topic | active matter glass transition theory |
| url | https://doi.org/10.1088/1367-2630/aa914e |
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