Brownian yet Non-Gaussian Heat Engine
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866916250209222656 |
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| author | Iyyappan, I. Thomas, Jetin E. Ghosh, Sibasish |
| author_facet | Iyyappan, I. Thomas, Jetin E. Ghosh, Sibasish |
| contents | We investigate the performance of a Brownian heat engine working in a heterogeneous thermal bath where the mobility fluctuates. Brownian particle is trapped by the time-dependent harmonic potential, by changing the stiffness coefficient and the bath temperatures, we perform a Stirling cycle. We numerically evaluated the average work, power and efficiency. We compare our results with the Brownian heat engine working in a homogeneous thermal bath. We find that for the normal diffusive system, the performance of a Gaussian heat engine serves as an upper bound. We also observe that the non-Gaussian position distribution decreases the stochastic heat engine performance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_11985 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Brownian yet Non-Gaussian Heat Engine Iyyappan, I. Thomas, Jetin E. Ghosh, Sibasish Statistical Mechanics Soft Condensed Matter We investigate the performance of a Brownian heat engine working in a heterogeneous thermal bath where the mobility fluctuates. Brownian particle is trapped by the time-dependent harmonic potential, by changing the stiffness coefficient and the bath temperatures, we perform a Stirling cycle. We numerically evaluated the average work, power and efficiency. We compare our results with the Brownian heat engine working in a homogeneous thermal bath. We find that for the normal diffusive system, the performance of a Gaussian heat engine serves as an upper bound. We also observe that the non-Gaussian position distribution decreases the stochastic heat engine performance. |
| title | Brownian yet Non-Gaussian Heat Engine |
| topic | Statistical Mechanics Soft Condensed Matter |
| url | https://arxiv.org/abs/2307.11985 |