Department of Photonics Engineering, Technical University of Denmark, Ørsteds Plads 343, DK-2800 Kgs. Lyngby, Denmark.
Centre for Theoretical Atomic, Molecular and Optical Physics, School of Mathematics and Physics, Queen's University, Belfast BT7 1NN, United Kingdom.
Phys Rev E. 2018 Apr;97(4-1):042127. doi: 10.1103/PhysRevE.97.042127.
Quantum interference is at the heart of what sets the quantum and classical worlds apart. We demonstrate that quantum interference effects involving a many-body working medium is responsible for genuinely nonclassical features in the performance of a quantum heat engine. The features with which quantum interference manifests itself in the work output of the engine depends strongly on the extensive nature of the working medium. While identifying the class of work substances that optimize the performance of the engine, our results shed light on the optimal size of such media of quantum workers to maximize the work output and efficiency of quantum energy machines.
量子干涉是区分量子世界和经典世界的核心。我们证明了涉及多体工作介质的量子干涉效应是量子热机性能中真正非经典特征的原因。量子干涉在发动机的功输出中表现出来的特征强烈依赖于工作介质的广泛性质。在确定优化发动机性能的工作物质类别时，我们的结果揭示了此类量子工质的最佳尺寸，以最大化量子能源机器的功输出和效率。
