论文标题
由不确定因果秩序的广义测量提供动力的热设备
Thermal devices powered by generalized measurements with indefinite causal order
论文作者
论文摘要
量子控制的设备可能会产生一个方案，在该场景中，可以执行两个通用量子操作的方式，以至于无法将操作应用程序的确定顺序关联起来。可以探索这种不确定的因果秩序，以在量子热器件中产生非平凡的影响。我们研究了一个由具有可调强度参数的广义测量通道组成的测量供电热器，其中能量与设备以工作或热量形式交换。根据测量强度设置，基于测量的设备可以用作加热发动机，热加速器或冰箱。通过采用两个测量通道的量子开关，我们探索了一个由不确定的因果秩序燃烧的热装置。我们还讨论了对不确定因果秩序结构的一致控制如何改变测量驱动的热装置的工作状态，以与对订单开关不连贯的场景相比，在情况下产生优势。
A quantum-controlled device may produce a scenario in which two general quantum operations can be performed in such a way that it is not possible to associate a definite order for the operations application. Such an indefinite causal order can be explored to produce nontrivial effects in quantum thermal devices. We investigate a measurement-powered thermal device that consists of generalized measurement channels with adjustable intensity parameters, where energy is exchanged with the apparatus in the form of work or heat. The measurement-based device can operate as a heat engine, a thermal accelerator, or a refrigerator, according to a measurement intensity setting. By employing a quantum switch of two measurement channels, we explore a thermal device fueled by an indefinite causal order. We also discuss how a coherent control over an indefinite causal order structure can change the operating regimes of the measurement-powered thermal device to produce an advantage when compared to a scenario with an incoherent control of the order switch.
