论文标题
用schrödinger猫状态作为局部振荡器的同性恋测量
Homodyne measurement with a Schrödinger cat state as a local oscillator
论文作者
论文摘要
同源性测量是广泛使用的量子测量。使用大幅度幅度的连贯状态作为局部振荡器，可以证明量子同伴测量限制到场正交测量值。在这项工作中，我们举例说明了一个一般思想：将非经典状态注入本地振荡器可以导致非经典测量。具体而言，我们认为将Cooherent状态（SchrödingerCat State）的叠加作为局部振荡器。在这种情况下，我们得出了KRAUS运营商和积极的操作员价值措施（POVM）。
Homodyne measurements are a widely used quantum measurement. Using a coherent state of large amplitude as the local oscillator, it can be shown that the quantum homodyne measurement limits to a field quadrature measurement. In this work, we give an example of a general idea: injecting non-classical states as a local oscillator can led to non-classical measurements. Specifically we consider injecting a superposition of coherent states, a Schrödinger cat state, as a local oscillator. We derive the Kraus operators and the positive operator-valued measure (POVM) in this situation.
