We consider a quantum Otto heat engine cycle operating between two squeezed thermal reservoirs that are characterized by a temperature as well as additional parameters that quantify the degree of squeezing. The optimal efficiency at the unified trade-off optimization criterion representing a compromise between energy benefits and losses for a quantum Otto heat engine is systematically investigated. The analytical expressions for the optimal efficiency are determined in the limit adiabatic and nonadiabatic processes as well as in the high- and low-temperature regimes, respectively. The general unified trade-off efficiency is given as a nonequilibrium efficiency that extends the standard unified trade-off efficiency to a more general nonequilibrium condition.

中文翻译：

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具有压缩储热器的量子奥托热机的统一权衡优化

我们考虑在两个挤压储热器之间运行的量子奥托热机循环，该储热器的特征在于温度以及量化挤压程度的附加参数。系统地研究了在统一的折衷优化标准下代表能量收益与损失的折衷优化标准的最优效率。最佳效率的解析表达式分别在极限绝热和非绝热过程以及高温和低温条件下确定。一般的统一权衡效率作为非均衡效率给出，它将标准的统一权衡效率扩展到更一般的非均衡条件。