2018/12/31 by Barış Çakmak, Özgür E. Müstecaplıoğlu · 2 citations
Physics and Astronomy · #quant-ph #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreve.99.032108
published as Phys. Rev. E 99, 032108 (2019) · 11 pages, 3 figures. Close to published version
arxiv created 2019/03/06 · arxiv updated 2019/03/08
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.