论文标题
多体系统中的操作连贯性与多部分纠缠之间的资源转换
Resource conversion between operational coherence and multipartite entanglement in many-body systems
论文作者
论文摘要
我们在多体系统中建立了一组资源转换关系，在多体系统中，资源成本和蒸馏的操作度量是集中的。在多方不一致的操作下，单党系统的初始连贯性界定了任意的两部分分区中相应的操作纠缠的最大量以及多体系统中真正的多方纠缠。此外，可以将转换后的多部分纠缠转移到其子系统上，并通过本地不一致的操作和经典通信恢复为单一方的连贯性，该方案构成了完整的不一致的操作场景中资源互换协议。例如，我们提出了一种在三Q Qubit系统中连贯性和真正的多部分纠缠之间循环互连的方案，而不会损失。此外，我们通过初始连贯性分析了两分和多部分真实多层纠缠的属性，并研究了转换中的多部分资源动力学。
We establish a set of resource conversion relationships between quantum coherence and multipartite entanglement in many-body systems, where the operational measures of resource cost and distillation are focused. Under the multipartite incoherent operation, the initial coherence of single-party system bounds the maximal amounts of corresponding operational entanglement in an arbitrary bipartite partition as well as the genuine multipartite entanglement in many-body systems. Furthermore, the converted multipartite entanglement can be transferred to its subsystems and restored to coherence of a single party by means of local incoherent operations and classical communication, which constitutes a protocol of resource interconversion within the full incoherent operation scenario. As an example, we present a scheme for cyclic interconversion between coherence and genuine multipartite entanglement in three-qubit systems without loss. Moreover, we analyze the property of bipartite and multipartite genuine multi-level entanglement by the initial coherence and investigate multipartite resource dynamics in the conversion.
