一种确定性、非破坏性可验证的光子数源
A Deterministic and Nondestructively-Verifiable Photon Number Source
摘要：
提出了一种基于连续测量和实时量子反馈控制的确定性方法来制备任意光子数的腔模态。该程序被动地监测在每个反馈稳定的测量轨迹中实际达到的数态，从而提供了一个非破坏性可验证的光子源。分析了在多原子良腔耦合条件下实现腔QED的可行性。
英文摘要：
We present a deterministic approach based on continuous measurement and real-time quantum feedback control to prepare arbitrary photon number states of a cavity mode. The procedure passively monitors the number state actually achieved in each feedback stabilized measurement trajectory, thus providing a nondestructively verifiable photon source. The feasibility of a possible cavity QED implementation in the many-atom good-cavity coupling regime is analyzed.
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