论文标题
来自开放量子系统的连贯性的麦内氏疗法
Ergotropy from coherences in an open quantum system
论文作者
论文摘要
我们表明，可以在有限温度下在有限的温度下统称与热浴的量子机组成的开放量子系统的稳态中具有非零的麦内型。我们模型的动力学将Qubits带入一个稳态，当系统中的Qubits数量不止一个时，该稳态具有在能量本质上具有连贯性的稳态。我们观察到，即使系统没有倒倒的种群，也可以从连贯性中提取工作，并在分析上表明，在高温限制中，每单位能量的麦角镜都等于两个Qubit Case的连贯性$ L_1 $ NORM。此外，我们分析了连贯性和麦内型的缩放量，这是系统中不同初始状态的系统数量的函数。我们的结果表明，可以设计一个量子电池，该量子电池由弱耦合方案中的耗散热浴充电。
We show that it is possible to have non-zero ergotropy in the steady-states of an open quantum system consisting of qubits that are collectively coupled to a thermal bath at a finite temperature. The dynamics of our model leads the qubits into a steady-state that has coherences in the energy eigenbasis when the number of qubits in the system is more than one. We observe that even though the system do not have inverted populations, it is possible to extract work from the coherences and analytically show that in the high temperature limit, ergotropy per unit energy is equal to the $l_1$ norm of coherence for the two qubit case. Further, we analyze the scaling of coherence and ergotropy as a function of the number of qubits in the system for different initial states. Our results suggest that one can design a quantum battery that is charged by a dissipative thermal bath in the weak coupling regime.
