Kinetic temperature and pressure of an active Tonks gas
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866914631266598912 |
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| author | Schiltz-Rouse, Elijah Row, Hyeongjoo Mallory, Stewart A. |
| author_facet | Schiltz-Rouse, Elijah Row, Hyeongjoo Mallory, Stewart A. |
| contents | 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 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_13858 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Kinetic temperature and pressure of an active Tonks gas Schiltz-Rouse, Elijah Row, Hyeongjoo Mallory, Stewart A. Soft Condensed Matter Statistical Mechanics 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 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. |
| title | Kinetic temperature and pressure of an active Tonks gas |
| topic | Soft Condensed Matter Statistical Mechanics |
| url | https://arxiv.org/abs/2304.13858 |