论文标题
有限的量子carnot发动机中的功率波动
Power fluctuations in a finite-time quantum Carnot engine
论文作者
论文摘要
稳定性是具有波动功率输出的小型热机的重要特性。我们在这里考虑基于退化多层系统的有限时间量子Carnot发动机，并研究其有限的希尔伯特空间结构对其稳定性的影响。我们特别优化了其相对工作的相对级别的变性和水平数量的波动。我们发现其最佳性能可能会超过非等级两级发动机或谐波振荡器电动机的最佳性能。我们的结果表明了如何实现高性能，高稳定性循环量子热发动机。
Stability is an important property of small thermal machines with fluctuating power output. We here consider a finite-time quantum Carnot engine based on a degenerate multilevel system and study the influence of its finite Hilbert space structure on its stability. We optimize in particular its relative work fluctuations with respect to level degeneracy and level number. We find that its optimal performance may surpass those of nondegenerate two-level engines or harmonic oscillator motors. Our results show how to realize high-performance, high-stability cyclic quantum heat engines.
