论文标题
多体非局部性作为量子增强计量学的资源
Many-body nonlocality as a resource for quantum-enhanced metrology
论文作者
论文摘要
我们证明，多体非局部性是超前计量学的资源。通过将量子传感器的灵敏度与见证非局部性的多体相关函数的组合联系起来，可以实现此结果。我们用一些突出的例子说明了我们的发现 - 任何两种模式构型中的旋转集合和超冷原子的气体的集合。
We demonstrate that a many-body nonlocality is a resource for ultra-precise metrology. This result is achieved by linking the sensitivity of a quantum sensor with a combination of many-body correlation functions that witness the nonlocality. We illustrate our findings with some prominent examples---a collection of spins forming an Ising chain and a gas of ultra-cold atoms in any two-mode configuration.
