Boosting engine performance with Bose–Einstein condensation
At low-temperatures a gas of bosons will undergo a phase transition into a quantum state of matter known as a Bose–Einstein condensate (BEC), in which a large fraction of the particles will occupy the ground state simultaneously. Here we explore the performance of an endoreversible Otto cycle operat...
| 出版年: | New Journal of Physics |
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| 主要な著者: | , , , , , |
| フォーマット: | 論文 |
| 言語: | 英語 |
| 出版事項: |
IOP Publishing
2022-01-01
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| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1088/1367-2630/ac47cc |
| _version_ | 1852818838485204992 |
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| author | Nathan M Myers Francisco J Peña Oscar Negrete Patricio Vargas Gabriele De Chiara Sebastian Deffner |
| author_facet | Nathan M Myers Francisco J Peña Oscar Negrete Patricio Vargas Gabriele De Chiara Sebastian Deffner |
| author_sort | Nathan M Myers |
| collection | DOAJ |
| container_title | New Journal of Physics |
| description | At low-temperatures a gas of bosons will undergo a phase transition into a quantum state of matter known as a Bose–Einstein condensate (BEC), in which a large fraction of the particles will occupy the ground state simultaneously. Here we explore the performance of an endoreversible Otto cycle operating with a harmonically confined Bose gas as the working medium. We analyze the engine operation in three regimes, with the working medium in the BEC phase, in the gas phase, and driven across the BEC transition during each cycle. We find that the unique properties of the BEC phase allow for enhanced engine performance, including increased power output and higher efficiency at maximum power. |
| format | Article |
| id | doaj-art-9ba2bb5c02214ea2bcb2d183adffcafc |
| institution | Directory of Open Access Journals |
| issn | 1367-2630 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| spelling | doaj-art-9ba2bb5c02214ea2bcb2d183adffcafc2025-08-19T20:33:05ZengIOP PublishingNew Journal of Physics1367-26302022-01-0124202500110.1088/1367-2630/ac47ccBoosting engine performance with Bose–Einstein condensationNathan M Myers0https://orcid.org/0000-0002-9903-2859Francisco J Peña1https://orcid.org/0000-0002-7432-0707Oscar Negrete2https://orcid.org/0000-0002-2412-8602Patricio Vargas3Gabriele De Chiara4https://orcid.org/0000-0003-3265-9021Sebastian Deffner5https://orcid.org/0000-0003-0504-6932Department of Physics, University of Maryland , Baltimore County, Baltimore, MD 21250, United States of America; Computer, Computational and Statistical Sciences Division, Los Alamos National Laboratory , Los Alamos, NM 87545, United States of AmericaDepartamento de Física, Universidad Técnica Federico Santa María , Casilla 110V, Valparaíso, ChileDepartamento de Física, CEDENNA, Universidad Técnica Federico Santa María , Casilla 110V, Valparaíso, ChileDepartamento de Física, CEDENNA, Universidad Técnica Federico Santa María , Casilla 110V, Valparaíso, ChileCentre for Theoretical Atomic, Molecular and Optical Physics, Queen’s University Belfast , Belfast BT7 1NN, United KingdomDepartment of Physics, University of Maryland , Baltimore County, Baltimore, MD 21250, United States of America; Instituto de Física ‘Gleb Wataghin’, Universidade Estadual de Campinas , 13083-859, Campinas, São Paulo, BrazilAt low-temperatures a gas of bosons will undergo a phase transition into a quantum state of matter known as a Bose–Einstein condensate (BEC), in which a large fraction of the particles will occupy the ground state simultaneously. Here we explore the performance of an endoreversible Otto cycle operating with a harmonically confined Bose gas as the working medium. We analyze the engine operation in three regimes, with the working medium in the BEC phase, in the gas phase, and driven across the BEC transition during each cycle. We find that the unique properties of the BEC phase allow for enhanced engine performance, including increased power output and higher efficiency at maximum power.https://doi.org/10.1088/1367-2630/ac47ccquantum heat engineBose–Einstein condensatequantum thermodynamics |
| spellingShingle | Nathan M Myers Francisco J Peña Oscar Negrete Patricio Vargas Gabriele De Chiara Sebastian Deffner Boosting engine performance with Bose–Einstein condensation quantum heat engine Bose–Einstein condensate quantum thermodynamics |
| title | Boosting engine performance with Bose–Einstein condensation |
| title_full | Boosting engine performance with Bose–Einstein condensation |
| title_fullStr | Boosting engine performance with Bose–Einstein condensation |
| title_full_unstemmed | Boosting engine performance with Bose–Einstein condensation |
| title_short | Boosting engine performance with Bose–Einstein condensation |
| title_sort | boosting engine performance with bose einstein condensation |
| topic | quantum heat engine Bose–Einstein condensate quantum thermodynamics |
| url | https://doi.org/10.1088/1367-2630/ac47cc |
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