Spin quantum heat engines with shortcuts to adiabaticity

Barış Çakmak and Özgür E. Müstecaplıoğlu
Phys. Rev. E 99, 032108 – Published 6 March 2019

Abstract

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.

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  • Received 16 December 2018

DOI:https://doi.org/10.1103/PhysRevE.99.032108

©2019 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & Thermodynamics

Authors & Affiliations

Barış Çakmak1,2,* and Özgür E. Müstecaplıoğlu1,†

  • 1Department of Physics, Koç University, İstanbul, Sarıyer 34450, Turkey
  • 2College of Engineering and Natural Sciences, Bahçeşehir University, Beşiktaş, Istanbul 34353, Turkey

  • *cakmakb@gmail.com
  • omustecap@ku.edu.tr

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Vol. 99, Iss. 3 — March 2019

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