论文标题
移动目标状态的量子非拆卸测量
Quantum non-demolition measurements of moving target states
论文作者
论文摘要
我们提出了一种协议，用于通过与仪表系统的谐振耦合和纠缠量量子系统的状态。通过连续测量一个可以观察到的时间发展的时间，我们推断了纠缠系统的演变，最终是感兴趣系统的状态和动态。因此，通过模拟互联耦合的两级系统的时间依赖的激发状态种群来解决空腔场中的光子数，我们建议将其视为量子非测定测量的扩展，并在量子计量和量子计算中使用潜在的应用。
We present a protocol for probing the state of a quantum system by its resonant coupling and entanglement with a meter system. By continuous measurement of a time evolving meter observable, we infer the evolution of the entangled systems and, ultimately, the state and dynamics of the system of interest. The photon number in a cavity field is thus resolved by simulated monitoring of the time dependent excited state population of a resonantly coupled two-level system, and we propose to regard this as an extension of quantum non-demolition measurements with potential applications in quantum metrology and quantum computing.
