Quantum energy teleportation without limit of distance
Quantum energy teleportation without limit of distance
复制标题
量子能量隐形传输无距离限制
DOI：
10.1103/physreva.89.012311
复制
发表时间：
2014
影响因子：
2.9
通讯作者：
Go Yusa
中科院分区：
文献类型：
--
作者：
Masahro Hotta;Jiro Matsumoto;Go Yusa
从远程协议用户的操作角度来看，量子能量隐形传态(QET)是通过本地操作和经典通信进行的能量传输。QET与基础研究领域有各种联系，包括黑洞物理、麦克斯韦恶魔的量子理论和凝聚态物理中的量子纠缠。然而，使用先前的QET协议提取的能量受到两个协议用户之间的距离的限制；能量的上限与该距离成反比。在本文中，我们证明了在两个协议用户之间引入具有局域真空区的压缩真空态克服了这一限制，允许在实际距离内进行能量隐形传输。
Quantum energy teleportation (QET) is, from the operational viewpoint of distant protocol users, energy transportation via local operations and classical communication. QET has various links to fundamental research fields including black-hole physics, the quantum theory of Maxwell's demon, and quantum entanglement in condensed-matter physics. However, the energy that has been extracted using a previous QET protocol is limited by the distance between two protocol users; the upper bound of the energy being inversely proportional to the distance. In this paper, we prove that introducing squeezed vacuum states with local vacuum regions between the two protocol users overcomes this limitation, allowing energy teleportation over practical distances.