论文标题
通过量子转向量化的自旋量子热发动机
Spin Quantum Heat Engine Quantified by Quantum Steering
论文作者
论文摘要
随着对量子信息科学的兴趣不断上升，通过探索微观量子系统将热发动机扩展到量子状态，在过去的十年中引起了人们的兴趣。尽管已经研究了工作培养基的量子系统中的量子相干性以发挥非平凡的作用，但对量子热发动机的内在量子优势的完全理解仍然难以捉摸。我们通过实验表明，工作培养基与热浴之间的量子相关性对于量子szilard发动机的量子优势至关重要，在量子上，在工作培养基中的量子相干性自然被排除。通过通过量子转向来量化非古典相关性，我们揭示了当恶魔可以真正引导工作介质时，热发动机是量子。通过在工作媒介上采取不同的工作提取方法获得的平均工作可用于验证实际的量子Szilard发动机。
Following the rising interest in quantum information science, the extension of a heat engine to the quantum regime by exploring microscopic quantum systems has seen a boom of interest in the last decade. Although quantum coherence in the quantum system of the working medium has been investigated to play a nontrivial role, a complete understanding of the intrinsic quantum advantage of quantum heat engines remains elusive. We experimentally demonstrate that the quantum correlation between the working medium and the thermal bath is critical for the quantum advantage of a quantum Szilard engine, where quantum coherence in the working medium is naturally excluded. By quantifying the non-classical correlation through quantum steering, we reveal that the heat engine is quantum when the demon can truly steer the working medium. The average work obtained by taking different ways of work extraction on the working medium can be used to verify the real quantum Szilard engine.
