论文标题
非亚伯量子运输和热量效应
Non-Abelian Quantum Transport and Thermosqueezing Effects
论文作者
论文摘要
现代量子实验提供了具有非交通量的运输示例，提供了一种工具来了解热效应和量子效应之间的相互作用。在这里，我们在线性响应制度中提出了非亚伯运输的理论。我们的主要见解是将通用的Gibbs合奏使用带有非交通费用的通用Gibbs合奏作为基本的构建块，并且在碰撞设置中使用严格的电荷保留单位。然后，使用两个储层之间的碰撞模型构建线性响应框架。我们表明，运输系数符合Onsager互惠。此外，我们发现与通勤运输的情况相比，与非交换性相关的量子相干性作用以减少净熵产生。因此，这在量子相干运输和耗散之间提供了明显的联系。例如，我们研究了纤维素系统中的热量和挤压通量，表征了一组热量的系数，该系数具有潜在的计量学和量子状态中的热量转换中的应用。
Modern quantum experiments provide examples of transport with non-commuting quantities, offering a tool to understand the interplay between thermal and quantum effects. Here we set forth a theory for non-Abelian transport in the linear response regime. Our key insight is to use generalized Gibbs ensembles with non-commuting charges as the basic building blocks and strict charge-preserving unitaries in a collisional setup. The linear response framework is then built using a collisional model between two reservoirs. We show that the transport coefficients obey Onsager reciprocity. Moreover, we find that quantum coherence, associated to the non-commutativity, acts so as to reduce the net entropy production, when compared to the case of commuting transport. This therefore provides a clear connection between quantum coherent transport and dissipation. As an example, we study heat and squeezing fluxes in bosonic systems, characterizing a set of thermosqueezing coefficients with potential applications in metrology and heat-to-work conversion in the quantum regime.
