论文标题
在储层挤压下，量子热发动机的热力学和波动
Thermodynamics and Fluctuations in Quantum Heat Engines under Reservoir Squeezing
论文作者
论文摘要
我们研究了由热挤压和冷热储层驱动的有限时间量子奥托发动机的热力学和波动。我们表明，储层挤压通过提高热力学效率和功率可显着提高性能，并通过降低相对功率波动并加快量子效率的收敛性来实现更高的稳定性。这些结果是通过我们的理论分析来解释的，该分析结合了储层挤压对与量子摩擦和由于有限时间相连的不可逆性的影响。提出了一种实现这种量子加热发动机的实验方案，该方案使用与被困的40CA $^+$离子有关的单电子旋转。我们提供了一个通用框架，可靠地研究有限的量子热发动机，并获得对经典热机以外的新型热力学行为的重要见解。
We investigate the thermodynamics and fluctuations of a finite-time quantum Otto engine alternatively driven by a hot squeezed and a cold thermal reservoir. We show that reservoir squeezing significantly enhances the performance by increasing the thermodynamic efficiency and the power, and enables higher stability by decreasing the relative power fluctuations and speeding up the convergence of quantum efficiency to its most probable value. These results are explained by our theoretical analysis that incorporates the effect of reservoir squeezing on the irreversibility associated with quantum friction and coherence due to finite time. An experimental scheme for realizing this quantum heat engine is proposed using a single-electron spin pertaining to a trapped 40Ca$^+$ ion. We provide a general framework for reliably studying the finite-time quantum heat engine and derive important insights into the novel thermodynamic behaviors beyond the classical thermal machines.
