论文标题
具有双向操作和效率提高
Nonadiabatic coupled-qubit Otto cycle with bidirectional operation and efficiency gains
论文作者
论文摘要
我们研究了使用2 Q量的工作物质的量子奥托循环，该物质在单一中风期间在不同时间与自身通勤。我们研究了这些笔触以有限的持续时间进行操作时，周期如何应对量子绝热性的丧失。我们发现，定性特征，例如以热发动机运行的反向旋转周期的可能性，或者可以随着浴缸之间的温度差而增加的循环效率，甚至对于高度非绝热的笔触都具有弹性。然而，循环效率迅速降低，尽管对于小量子非绝热性，它仍然可以保持高于标准的Otto值。
We study a quantum Otto cycle that uses a 2-qubit working substance whose Hamiltonian does not commute with itself at different times during unitary strokes. We investigate how the cycle responds to the loss of quantum adiabaticity when these strokes are operated with a finite duration. We find that qualitative features such as the possibility of counter-rotating cycles operating as heat engines, or a cycle efficiency that can increase with a decrease in the temperature difference between the baths, are resilient even to highly nonadiabatic strokes. However, cycle efficiency rapidly decreases, although it can still remain above the standard Otto value for small degrees of quantum nonadiabaticity.
