Title: Spin quantum heat engines with shortcuts to adiabaticity Show Chinese title

Title: 具有绝热捷径的自旋量子热机

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. Show Chinese abstract

Abstract: 我们考虑一个以单自旋和双自旋-$1/2$系统为工质的有限时间量子奥托循环。 为了在有限时间内模拟绝热动力学，我们采用一种快速绝热技术，并评估包括快速绝热成本在内的发动机性能。 我们将结果与相同循环的真实绝热和非绝热性能进行比较。 我们的研究结果明确表明，与绝热和非绝热对应情况相比，使用快速绝热方案显著提高了量子奥托发动机的性能，对于不同的性能指标均如此。