论文标题
用量子辐射脉冲的量子读数和量子传感
Qubit readout and quantum sensing with pulses of quantum radiation
论文作者
论文摘要
可以通过与探针场的相互作用来研究量子系统的不同假设，例如量子系统的逻辑状态或物理相互作用参数的值。这样的磁场可以在特别敏感的量子状态下制备，我们可以使用量子轨迹对量子系统状态的随机测量记录和条件演变进行建模，但与其与辐射脉冲相互作用的量子系统的相互作用。我们的分析适用于不同的测量策略和探针场脉冲的任意输入量子状态，因此可以直接比较其计量学的优势。
Different hypotheses about a quantum system such as the logical state of a qubit or the value of physical interaction parameters can be investigated by the interaction with a probe field. Such fields may be prepared in particularly sensitive quantum states, and we can use quantum trajectories to model the stochastic measurement record and conditional evolution of the state of the quantum system subject to its interaction with a travelling pulse of radiation. Our analysis applies to different measurement strategies and to arbitrary input quantum states of the probe field pulse and it thus permits direct comparison of their metrological advantages.
