论文标题
熵电流和量子机的效率,由非平衡不一致的储层驱动
Entropy current and efficiency of quantum machines driven by nonequilibrium incoherent reservoirs
论文作者
论文摘要
纳米技术不仅为我们提供了开发量子机的可能性,而且还提供了能够驱动它们的非规范功率来源。在这里,我们专注于研究由平衡储层的任意组合和一种由非相互作用颗粒组成但其分布功能的工程储层的形式驱动的量子机器的性能。我们提供了计算这些机器的最大效率的表达式,而无需了解如何实际制作非平衡储层。公式需要计算我们术语熵电流的数量,我们也得出了。我们通过可解决的玩具模型来说明我们的方法,其中热量“自发”流向温度梯度。
Nanotechnology has not only provided us the possibility of developing quantum machines but also noncanonical power sources able to drive them. Here we focus on studying the performance of quantum machines driven by arbitrary combinations of equilibrium reservoirs and a form of engineered reservoirs consisting of noninteracting particles but whose distribution functions are nonthermal. We provide the expressions for calculating the maximum efficiency of those machines without needing any knowledge of how the nonequilibrium reservoirs were actually made. The formulas require the calculation of a quantity that we term entropy current, which we also derive. We illustrate our methodology through a solvable toy model where heat "spontaneously" flows against the temperature gradient.