论文标题
通过任何可观察到的不连贯性及其不一致的部分估算量子相干性
Estimating quantum coherence by noncommutativity of any observable and its incoherent part
论文作者
论文摘要
我们使用对亚单位规范的任意可观察到的非交换性估计量在任意维度上建立了任意量子状态的量子相干性，其中估计器是可观察到的换向器及其不一致的或其不连贯的或经典部分。该关系提供了一种直接的方法，即在不诉诸于量子状态层析成像或现有证人操作员的情况下获得任意量子状态的量子相干性的估计。
We establish a lower bound on the quantum coherence of an arbitrary quantum state in arbitrary dimension, using a noncommutativity estimator of an arbitrary observable of sub-unit norm, where the estimator is the commutator of the observable and its incoherent or classical part. The relation provides a direct method of obtaining an estimate of the quantum coherence of an arbitrary quantum state, without resorting to quantum state tomography or the existing witness operators.
