论文标题
通过Otto机器为量子电池充电：监视的影响
Charging quantum batteries via Otto machines: The influence of monitoring
论文作者
论文摘要
研究了由发动机或冰箱工作的四冲程量子机通过四冲程量子机的充电。提出的分析提供了组合系统的能量行为，从机器的热量和工作流程，电池能量的平均值和差异以及其麦角镜的相干和不相互分的部分。为了监视电池状态，其能量是在完成任何周期后或在执行规定的循环数之后测量的。这两种情况下，由此产生的电池性能有很大不同。在使用发动机的第一个充电时期内，常规测量值加快了充电的速度，而在没有测量值的情况下，麦芽糖的增益更为明显。在稍后的阶段，发动机仍无法正常工作，而在没有中间测量值的情况下，它仍会继续为电池充电，最终达到最大带电状态，并且用于定期测量的电池的次级充电状态。对于冰箱，测量电池的充电在第一个时期内也更快。只有在第二阶段，当机器无法从冷水中提取热量时，测量的影响变得不太明显，导致两种测量场景的渐近状态相似。
The charging of a quantum battery by a four-stroke quantum machine that works either as an engine or a refrigerator is investigated. The presented analysis provides the energetic behavior of the combined system in terms of the heat and workflows of the machine, the average, and variance of the battery's energy as well as the coherent and incoherent parts of its ergotropy. To monitor the battery state its energy is measured either after the completion of any cycle or after a prescribed number of cycles is carried out. The resulting battery performances greatly differ for those two cases. During the first charging epoch with an engine, the regular measurements speed up the charging, whereas the gain of ergotropy is more pronounced in the absence of measurements. In a later stage, the engine fails to work as such while it still continues charging the battery that eventually reaches the maximally charged state in the absence of intermediate measurements and a suboptimally charged state for a periodically measured battery. For a refrigerator, the charging of the measured battery also proceeds faster during the first epoch. Only during the second stage when the machine fails to extract heat from the cold bath the influence of the measurements become less pronounced leading to rather similar asymptotic states for the two measurement scenarios.
