论文标题
分布式量子传感
Distributed Quantum Sensing
论文作者
论文摘要
在网络或一系列传感器上铰链铰链以执行测量任务。一种传感的经验法则是，由$ M $独立传感器进行的集体测量可以提高灵敏度$ 1/\ sqrt {M} $，称为标准量子限制（SQL）。可以利用纠缠和挤压光等量子资源超过SQL。分布式量子传感是一个新兴的主题，致力于调查由多个传感器共享的纠缠状态在解决不同测量问题时所启用的绩效增长。这篇综述从量子信息的角度提出了分布式的量子传感，并描述了分布式量子传感方案及其实验演示。还将讨论通过分布式量子传感和未来机会的前景启用的应用程序。
A plethora of applications hinge on a network or an array of sensors to undertake measurement tasks. A rule of thumb for sensing is that a collective measurement taken by $M$ independent sensors can improve the sensitivity by $1/\sqrt{M}$, known as the standard quantum limit (SQL). Quantum resources such as entanglement and squeezed light can be harnessed to surpass the SQL. Distributed quantum sensing is an emerging subject dedicated to investigating the performance gain enabled by entangled states shared by multiple sensors in tackling different measurement problems. This Review formulates distributed quantum sensing from a quantum-information perspective and describes distributed quantum sensing protocols and their experimental demonstrations. The applications enabled by distributed quantum sensing and an outlook for future opportunities will also be discussed.
