Transient Casimir Forces from Quenches in Thermal and Active Matter
We compute fluctuation-induced (Casimir) forces for classical systems after a temperature quench. Using a generic coarse-grained model for fluctuations of a conserved density, we find that transient forces arise even if the initial and final states are force free. In setups reminiscent of Casimir (p...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2017
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| Online Access: | http://hdl.handle.net/1721.1/109177 https://orcid.org/0000-0002-1112-5912 |
| _version_ | 1826201901830504448 |
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| author | Rohwer, Christian M. Krüger, Matthias Kardar, Mehran |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Rohwer, Christian M. Krüger, Matthias Kardar, Mehran |
| author_sort | Rohwer, Christian M. |
| collection | MIT |
| description | We compute fluctuation-induced (Casimir) forces for classical systems after a temperature quench. Using a generic coarse-grained model for fluctuations of a conserved density, we find that transient forces arise even if the initial and final states are force free. In setups reminiscent of Casimir (planar walls) and van der Waals (small inclusions) interactions, we find comparable exact universal expressions for the force. Dynamical details only scale the time axis of transient force curves. We propose that such quenches can be achieved, for instance, in experiments on active matter, employing tunable activity or interaction protocols. |
| first_indexed | 2024-09-23T11:58:39Z |
| format | Article |
| id | mit-1721.1/109177 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:58:39Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1091772022-09-27T23:14:07Z Transient Casimir Forces from Quenches in Thermal and Active Matter Rohwer, Christian M. Krüger, Matthias Kardar, Mehran Massachusetts Institute of Technology. Department of Physics Kardar, Mehran We compute fluctuation-induced (Casimir) forces for classical systems after a temperature quench. Using a generic coarse-grained model for fluctuations of a conserved density, we find that transient forces arise even if the initial and final states are force free. In setups reminiscent of Casimir (planar walls) and van der Waals (small inclusions) interactions, we find comparable exact universal expressions for the force. Dynamical details only scale the time axis of transient force curves. We propose that such quenches can be achieved, for instance, in experiments on active matter, employing tunable activity or interaction protocols. National Science Foundation (U.S.) (DMR-1206323) 2017-05-18T19:03:22Z 2017-05-18T19:03:22Z 2017-01 2016-10 2017-01-05T23:00:02Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/109177 Rohwer,Christian M.; Kardar,Mehran and Krüger, Matthias. "Transient Casimir Forces from Quenches in Thermal and Active Matter." Physical Review Letters 118, no. 015702 (January 2017): 1-5 © 2017 American Physical Society https://orcid.org/0000-0002-1112-5912 en http://dx.doi.org/10.1103/PhysRevLett.118.015702 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Rohwer, Christian M. Krüger, Matthias Kardar, Mehran Transient Casimir Forces from Quenches in Thermal and Active Matter |
| title | Transient Casimir Forces from Quenches in Thermal and Active Matter |
| title_full | Transient Casimir Forces from Quenches in Thermal and Active Matter |
| title_fullStr | Transient Casimir Forces from Quenches in Thermal and Active Matter |
| title_full_unstemmed | Transient Casimir Forces from Quenches in Thermal and Active Matter |
| title_short | Transient Casimir Forces from Quenches in Thermal and Active Matter |
| title_sort | transient casimir forces from quenches in thermal and active matter |
| url | http://hdl.handle.net/1721.1/109177 https://orcid.org/0000-0002-1112-5912 |
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