论文标题
宇宙纠缠的几何校正
Geometric corrections to cosmological entanglement
论文作者
论文摘要
我们研究了均匀和各向同性宇宙背景的不均匀扰动的纠缠产生，这表明量子和几何效应之间的相互作用在均匀的情况下可能会对纠缠的熵产生相关的后果。为此，我们专注于共同耦合的标量场，并讨论标量颗粒的几何产生如何导致纠缠。在触及术上，一阶我们发现熵校正中的振荡，而在二阶基础上，基础几何形状会导致纠缠产生的模式混合。因此，我们仅由于几何贡献而量化纠缠，并将我们的结果与以前的发现进行比较。我们通过几何（准）粒子来表征几何贡献，被解释为暗物质候选者。
We investigate entanglement production by inhomogeneous perturbations over a homogeneous and isotropic cosmic background, demonstrating that the interplay between quantum and geometric effects can have relevant consequences on entanglement entropy, with respect to homogeneous scenarios. To do so, we focus on a conformally coupled scalar field and discuss how geometric production of scalar particles leads to entanglement. Perturbatively, at first order we find oscillations in entropy correction, whereas at second order the underlying geometry induces mode-mixing on entanglement production. We thus quantify entanglement solely due to geometrical contribution and compare our outcomes with previous findings. We characterize the geometric contribution through geometric (quasi)-particles, interpreted as dark matter candidates.
