论文标题
非经典性和保护法的时间见证人
Temporal witnesses of non-classicality and conservation laws
论文作者
论文摘要
最近提出了基于一般的非经典性证人，可以应用于重力中的量子效应。该证人是基于通过调解员在两个量子探针之间产生纠缠的基础。在本文中，我们使用单个量子探测器来评估调解人的非经典性。在量子理论的形式主义中，我们表明，如果系统$ m $能够诱导量子系统$ q $的连贯的动力学演变，那么在有保护定律的情况下，则$ m $必须是非经典的。该论点支持依靠单个量子探针的非经典性证人，该证人可以应用于许多开放问题，尤其是在量子重力或量子生物学中。
A general entanglement-based witness of non-classicality has recently been proposed, which can be applied to testing quantum effects in gravity. This witness is based on generating entanglement between two quantum probes via a mediator. In this paper we provide a "temporal" variant of this witness, using a single quantum probe to assess the non-classicality of the mediator. Within the formalism of quantum theory, we show that if a system $M$ is capable of inducing a coherent dynamical evolution of a quantum system $Q$, in the presence of a conservation law, then $M$ must be non-classical. This argument supports witnesses of non-classicality relying on a single quantum probe, which can be applied to a number of open issues, notably in quantum gravity or quantum biology.
