无态变化的量子扰动：扰动测度的合理性和定域性
Quantum Disturbance without State Change: Soundness and Locality of Disturbance Measures
摘要：
人们通常认为，量子系统在没有状态变化的情况下不会受到干扰。在最近的一场争论中，这一假设被用来声称基于算子的扰动测度，一种广泛使用的扰动测度，具有非物理性质。在这里，我们表明，量子系统可能会引起一个操作上可检测的干扰，而没有状态的变化，以反驳索赔。此外，我们建立的可靠性，制定为健全性和局部性，运营商为基础的干扰措施，其中，我们表明，量化的干扰上的观察，表现在类时相关性，即使在其概率分布不改变的情况下。
英文摘要：
It is often supposed that a quantum system is not disturbed without state change. In a recent debate, this assumption is used to claim that the operator-based disturbance measure, a broadly used disturbance measure, has an unphysical property. Here, we show that a quantum system possibly incurs an operationally detectable disturbance without state change to rebut the claim. Moreover, we establish the reliability, formulated as soundness and locality, of the operator-based disturbance measure, which, we show, quantifies the disturbance on an observable that manifests in the time-like correlation even in the case where its probability distribution does not change.
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