Attaining Carnot efficiency with quantum and nanoscale heat engines
Abstract A heat engine operating in the one-shot finite-size regime, where systems composed of a small number of quantum particles interact with hot and cold baths and are restricted to one-shot measurements, delivers fluctuating work. Further, engines with lesser fluctuation produce a lesser amount...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-02-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-021-00366-6 |
| _version_ | 1818424933771902976 |
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| author | Mohit Lal Bera Maciej Lewenstein Manabendra Nath Bera |
| author_facet | Mohit Lal Bera Maciej Lewenstein Manabendra Nath Bera |
| author_sort | Mohit Lal Bera |
| collection | DOAJ |
| description | Abstract A heat engine operating in the one-shot finite-size regime, where systems composed of a small number of quantum particles interact with hot and cold baths and are restricted to one-shot measurements, delivers fluctuating work. Further, engines with lesser fluctuation produce a lesser amount of deterministic work. Hence, the heat-to-work conversion efficiency stays well below the Carnot efficiency. Here we overcome this limitation and attain Carnot efficiency in the one-shot finite-size regime, where the engines allow the working systems to simultaneously interact with two baths via the semi-local thermal operations and reversibly operate in a one-step cycle. These engines are superior to the ones considered earlier in work extraction efficiency, and, even, are capable of converting heat into work by exclusively utilizing inter-system correlations. We formulate a resource theory for quantum heat engines to prove the results. |
| first_indexed | 2024-12-14T14:05:55Z |
| format | Article |
| id | doaj.art-df8a0986cd1c4e6d88c9d9eb17592b09 |
| institution | Directory Open Access Journal |
| issn | 2056-6387 |
| language | English |
| last_indexed | 2024-12-14T14:05:55Z |
| publishDate | 2021-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj.art-df8a0986cd1c4e6d88c9d9eb17592b092022-12-21T22:58:33ZengNature Portfolionpj Quantum Information2056-63872021-02-01711710.1038/s41534-021-00366-6Attaining Carnot efficiency with quantum and nanoscale heat enginesMohit Lal Bera0Maciej Lewenstein1Manabendra Nath Bera2ICFO – Institut de Ciències Fotòniques, The Barcelona Institute of Science and TechnologyICFO – Institut de Ciències Fotòniques, The Barcelona Institute of Science and TechnologyDepartment of Physical Sciences, Indian Institute of Science Education and Research (IISER)Abstract A heat engine operating in the one-shot finite-size regime, where systems composed of a small number of quantum particles interact with hot and cold baths and are restricted to one-shot measurements, delivers fluctuating work. Further, engines with lesser fluctuation produce a lesser amount of deterministic work. Hence, the heat-to-work conversion efficiency stays well below the Carnot efficiency. Here we overcome this limitation and attain Carnot efficiency in the one-shot finite-size regime, where the engines allow the working systems to simultaneously interact with two baths via the semi-local thermal operations and reversibly operate in a one-step cycle. These engines are superior to the ones considered earlier in work extraction efficiency, and, even, are capable of converting heat into work by exclusively utilizing inter-system correlations. We formulate a resource theory for quantum heat engines to prove the results.https://doi.org/10.1038/s41534-021-00366-6 |
| spellingShingle | Mohit Lal Bera Maciej Lewenstein Manabendra Nath Bera Attaining Carnot efficiency with quantum and nanoscale heat engines npj Quantum Information |
| title | Attaining Carnot efficiency with quantum and nanoscale heat engines |
| title_full | Attaining Carnot efficiency with quantum and nanoscale heat engines |
| title_fullStr | Attaining Carnot efficiency with quantum and nanoscale heat engines |
| title_full_unstemmed | Attaining Carnot efficiency with quantum and nanoscale heat engines |
| title_short | Attaining Carnot efficiency with quantum and nanoscale heat engines |
| title_sort | attaining carnot efficiency with quantum and nanoscale heat engines |
| url | https://doi.org/10.1038/s41534-021-00366-6 |
| work_keys_str_mv | AT mohitlalbera attainingcarnotefficiencywithquantumandnanoscaleheatengines AT maciejlewenstein attainingcarnotefficiencywithquantumandnanoscaleheatengines AT manabendranathbera attainingcarnotefficiencywithquantumandnanoscaleheatengines |