论文标题
Heisenberg限制的嘈杂原子时钟使用混合相干和挤压状态协议
Heisenberg-limited noisy atomic clock using a hybrid coherent and squeezed states protocol
论文作者
论文摘要
我们提出了一种混合量子古典原子时钟方案，其中使用自旋态状态下不相关的原子集合的审问来反馈一个（或更多）自旋键的原子集合，以朝着其最佳相位敏感性点。该协议克服了单个拉姆西时钟的稳定性，并达到了heisenberg限制的稳定性，同时避免了无损的测量。将分析预测与时钟操作的数值模拟进行比较，包括相关的1/F局部振荡器噪声。
We propose a hybrid quantum-classical atomic clock protocol where the interrogation of an ensemble of uncorrelated atoms in a spin-coherent state is used to feedback one (or more) spin-squeezed atomic ensembles toward their optimal phase sensitivity point. This protocol overcomes the stability of a single Ramsey clock and it reaches a Heisenberg-limited stability while avoiding non-destructive measurements. Analytical predictions are compared with numerical simulations of clocks operations including correlated 1/f local oscillator noise.
