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arXiv · 1812.00969

Spin quantum heat engines with shortcuts to adiabaticity

Barış Çakmak·Özgür E. Müstecaplıoğlu
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Abstract

We consider a finite-time quantum Otto cycle with single and two-spin-$1/2$ systems as its working medium. In order 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 non-adiabatic performances of the same cycle. Our findings clearly indicate that the use of shortcut-to-adiabaticity scheme significantly enhances the performance of the quantum Otto engine as compared to its adiabatic and non-adiabatic counterparts for different figures of merit.

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Barış Çakmak, Özgür E. Müstecaplıoğlu. 2019-03-06. Spin quantum heat engines with shortcuts to adiabaticity. https://doi.org/10.1103/physreve.99.032108

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