论文标题
量子测量中的量子相干性与量子纠缠之间的关系
Relation between Quantum Coherence and Quantum Entanglement in Quantum Measurements
论文作者
论文摘要
量子测量是一类量子通道，将量子状态发送到经典状态。我们为量子测量值设置了量子相干性和量子纠缠的资源理论，并找到了它们之间的关系。为此，我们构思一个相对熵类型的数量来说明量子测量的量子资源。量子测量的量子相干性可以通过连贯的 - 无生成转换来转换为两部分量子测量中的纠缠。相反，量子测量的量子纠缠单调诱导量子测量的量子相干性单调。我们的结果证实，即使对于不会产生任何量子资源的量子测量值，量子相干性和量子纠缠之间的联系也是有效的。
Quantum measurement is a class of quantum channels that sends quantum states to classical states. We set up resource theories of quantum coherence and quantum entanglement for quantum measurements and find relations between them. For this, we conceive a relative entropy type quantity to account for the quantum resources of quantum measurements. The quantum coherence of a quantum measurement can be converted into the entanglement in a bipartite quantum measurement through coherence-non generating transformations. Conversely, a quantum entanglement monotone of quantum measurements induces a quantum coherence monotone of quantum measurement. Our results confirm that the understanding on the link between quantum coherence and quantum entanglement is valid even for quantum measurements which do not generate any quantum resource.
