Kinetic temperature and pressure of an active Tonks gas.
| Autor: | Schiltz-Rouse E; Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA., Row H; Department of Chemical and Biomolecular Engineering, UC Berkeley, Berkeley, California 94720, USA., Mallory SA; Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA. |
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| Jazyk: | angličtina |
| Zdroj: | Physical review. E [Phys Rev E] 2023 Dec; Vol. 108 (6-1), pp. 064601. |
| DOI: | 10.1103/PhysRevE.108.064601 |
| Abstrakt: | Using computer simulation and analytical theory, we study an active analog of the well-known Tonks gas, where active Brownian particles are confined to a periodic one-dimensional (1D) channel. By introducing the notion of a kinetic temperature, we derive an accurate analytical expression for the pressure and clarify the paradoxical behavior where active Brownian particles confined to 1D exhibit anomalous clustering but no motility-induced phase transition. More generally, this work provides a deeper understanding of pressure in active systems as we uncover a unique link between the kinetic temperature and swim pressure valid for active Brownian particles in higher dimensions. |
| Databáze: | MEDLINE |
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