Spin quantum heat engines with shortcuts to adiabaticity

We consider a finite-time quantum Otto cycle with single- and two spin-1/2 systems as its working medium. To mimic adiabatic dynamics at a finite time, we employ a shortcut-to-adiabaticity technique and evaluate the performance of the engine including the cost of the shortcut. We compare our results...

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Bibliographic Details
Published inPhysical review. E Vol. 99; no. 3-1; p. 032108
Main Authors Çakmak, Barış, Müstecaplıoğlu, Özgür E
Format Journal Article
LanguageEnglish
Published United States 01.03.2019
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Summary:We consider a finite-time quantum Otto cycle with single- and two spin-1/2 systems as its working medium. To mimic adiabatic dynamics at a finite time, we employ a shortcut-to-adiabaticity technique and evaluate the performance of the engine including the cost of the shortcut. We compare our results with the true adiabatic and nonadiabatic performances of the same cycle. Our findings indicate that the use of the shortcut-to-adiabaticity scheme significantly enhances the performance of the quantum Otto engine as compared to its adiabatic and nonadiabatic counterparts for different figures of merit.
ISSN:2470-0053
DOI:10.1103/PhysRevE.99.032108