A quantum Otto engine with shortcuts to thermalization and adiabaticity
We investigate the energetic advantage of accelerating a quantum harmonic oscillator Otto engine by use of shortcuts to adiabaticity (for the expansion and compression strokes) and to equilibrium (for the hot isochore), by means of counter-diabatic (CD) driving. By comparing various protocols with a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ad0857 |
| _version_ | 1797632569643106304 |
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| author | A Pedram S C Kadıoğlu A Kabakçıoğlu Ö E Müstecaplıoğlu |
| author_facet | A Pedram S C Kadıoğlu A Kabakçıoğlu Ö E Müstecaplıoğlu |
| author_sort | A Pedram |
| collection | DOAJ |
| description | We investigate the energetic advantage of accelerating a quantum harmonic oscillator Otto engine by use of shortcuts to adiabaticity (for the expansion and compression strokes) and to equilibrium (for the hot isochore), by means of counter-diabatic (CD) driving. By comparing various protocols with and without CD driving, we find that, applying both type of shortcuts leads to enhanced power and efficiency even after the driving costs are taken into account. The hybrid protocol not only retains its advantage in the limit cycle, but also recovers engine functionality (i.e. a positive power output) in parameter regimes where an uncontrolled, finite-time Otto cycle fails. We show that controlling three strokes of the cycle leads to an overall improvement of the performance metrics compared with controlling only the two adiabatic strokes. Moreover, we numerically calculate the limit cycle behavior of the engine and show that the engines with accelerated isochoric and adiabatic strokes display a superior power output in this mode of operation. |
| first_indexed | 2024-03-11T11:38:52Z |
| format | Article |
| id | doaj.art-b24592cf15a74978b8ec16929c6682da |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-11T11:38:52Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-b24592cf15a74978b8ec16929c6682da2023-11-10T09:09:53ZengIOP PublishingNew Journal of Physics1367-26302023-01-01251111301410.1088/1367-2630/ad0857A quantum Otto engine with shortcuts to thermalization and adiabaticityA Pedram0https://orcid.org/0000-0001-7411-3399S C Kadıoğlu1A Kabakçıoğlu2https://orcid.org/0000-0002-9831-3632Ö E Müstecaplıoğlu3https://orcid.org/0000-0002-9134-3951Department of Physics, Koç University , Sarıyer, Istanbul 34450, TurkeyDepartment of Physics, Koç University , Sarıyer, Istanbul 34450, TurkeyDepartment of Physics, Koç University , Sarıyer, Istanbul 34450, TurkeyDepartment of Physics, Koç University , Sarıyer, Istanbul 34450, Turkey; TÜBİTAK Research Institute for Fundamental Sciences , Gebze 41470, TurkeyWe investigate the energetic advantage of accelerating a quantum harmonic oscillator Otto engine by use of shortcuts to adiabaticity (for the expansion and compression strokes) and to equilibrium (for the hot isochore), by means of counter-diabatic (CD) driving. By comparing various protocols with and without CD driving, we find that, applying both type of shortcuts leads to enhanced power and efficiency even after the driving costs are taken into account. The hybrid protocol not only retains its advantage in the limit cycle, but also recovers engine functionality (i.e. a positive power output) in parameter regimes where an uncontrolled, finite-time Otto cycle fails. We show that controlling three strokes of the cycle leads to an overall improvement of the performance metrics compared with controlling only the two adiabatic strokes. Moreover, we numerically calculate the limit cycle behavior of the engine and show that the engines with accelerated isochoric and adiabatic strokes display a superior power output in this mode of operation.https://doi.org/10.1088/1367-2630/ad0857open quantum systemsquantum thermodynamicsquantum heat engines |
| spellingShingle | A Pedram S C Kadıoğlu A Kabakçıoğlu Ö E Müstecaplıoğlu A quantum Otto engine with shortcuts to thermalization and adiabaticity New Journal of Physics open quantum systems quantum thermodynamics quantum heat engines |
| title | A quantum Otto engine with shortcuts to thermalization and adiabaticity |
| title_full | A quantum Otto engine with shortcuts to thermalization and adiabaticity |
| title_fullStr | A quantum Otto engine with shortcuts to thermalization and adiabaticity |
| title_full_unstemmed | A quantum Otto engine with shortcuts to thermalization and adiabaticity |
| title_short | A quantum Otto engine with shortcuts to thermalization and adiabaticity |
| title_sort | quantum otto engine with shortcuts to thermalization and adiabaticity |
| topic | open quantum systems quantum thermodynamics quantum heat engines |
| url | https://doi.org/10.1088/1367-2630/ad0857 |
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