Bosons outperform fermions: The thermodynamic advantage of symmetry
Bosons outperform fermions: The thermodynamic advantage of symmetry
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DOI：
10.1103/physreve.101.012110
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发表时间：
2020-01-08
影响因子：
2.4
通讯作者：
Deffner, Sebastian
中科院分区：
文献类型：
--
作者：
Myers, Nathan M.;Deffner, Sebastian
我们研究了一个量子奥托引擎与谐波工作介质组成的两个粒子，探索使用波函数对称性作为一个可访问的资源。结果表明，玻色子系统显示增强的性能相比，两个独立的单粒子发动机，而费米系统显示降低的性能。为此，我们探讨了效率和功率输出之间的权衡和参数制度下，该系统的功能作为发动机，冰箱，或加热器。值得注意的是，玻色子系统在作为发动机和作为制冷机操作时都在更宽的参数空间下操作。
We examine a quantum Otto engine with a harmonic working medium consisting of two particles to explore the use of wave function symmetry as an accessible resource. It is shown that the bosonic system displays enhanced performance when compared to two independent single particle engines, while the fermionic system displays reduced performance. To this end, we explore the trade-off between efficiency and power output and the parameter regimes under which the system functions as engine, refrigerator, or heater. Remarkably, the bosonic system operates under a wider parameter space both when operating as an engine and as a refrigerator.