论文标题
线性化量子重力中局部介导的纠缠
Locally mediated entanglement in linearised quantum gravity
论文作者
论文摘要
当前对由重力介导的纠缠的实验室检测的兴趣是通过信息引发的 - 理论论点：当地田间介导的纠缠证明该领域不是经典的。效应的先前推导将重力建模为瞬时；在这里，我们从线性化的量子相对论中得出它，同时使用路径积分形式主义保持洛伦兹的不变性。在此框架中，纠缠显然是由该场的量子特征介导的。我们还指出了观察智障纠缠的可能性，这不能通过瞬时相互作用来解释。这是重力的困难实验，但对于类似的电磁病是合理的。
The current interest in laboratory detection of entanglement mediated by gravity was sparked by an information--theoretic argument: entanglement mediated by a local field certifies that the field is not classical. Previous derivations of the effect modelled gravity as instantaneous; here we derive it from linearised quantum general relativity while keeping Lorentz invariance explicit, using the path integral formalism. In this framework, entanglement is clearly mediated by a quantum feature of the field. We also point out the possibility of observing retarded entanglement, which cannot be explained by an instantaneous interaction. This is a difficult experiment for gravity, but is plausible for the analogous electromagnetic case.
