论文标题
量子转向:实践挑战和观点
Quantum Steering: Practical Challenges and Perspectives
论文作者
论文摘要
Einstein-Rosen-Podolsky(EPR)转向或量子转向描述了“怪异的行动”,如果一方共享某个纠缠状态,则一方能够远程改变另一方的状态。通常,它承认操作解释是验证纠缠而不信任指导方的设备的任务,使其位于贝尔非局部性和纠缠之间。在过去的几十年中,量子转向与不对称的性质一起引起了理论和实验方面的极大兴趣。从这个角度来看,我们简要概述了EPR转向,重点是最近进步,讨论当前的挑战,机遇并提出了各种未来的方向。我们展望未来,将研究引导到无数和微观系统以外的更大范围的水平,以揭示较高维度的转向,并建立由多个政党组成的转导网络。
Einstein-Rosen-Podolsky (EPR) steering or quantum steering describes the "spooky-action-at-a-distance" that one party is able to remotely alter the states of the other if they share a certain entangled state. Generally, it admits an operational interpretation as the task of verifying entanglement without trust in the steering party's devices, making it lying intermediate between Bell nonlocality and entanglement. Together with the asymmetrical nature, quantum steering has attracted a considerable interest from theoretical and experimental sides over past decades. In this Perspective, we present a brief overview of the EPR steering with emphasis on recent progress, discuss current challenges, opportunities and propose various future directions. We look to the future which directs research to a larger-scale level beyond massless and microscopic systems to reveal steering of higher dimensionality, and to build up steered networks composed of multiple parties.