论文标题
关于开放量子flrw宇宙学的大弹跳的传播
On the propagation across the big bounce in an open quantum FLRW cosmology
论文作者
论文摘要
在IKKT矩阵理论的框架内，研究了开放式FLRW弹跳型量子时空的标量量子量子时空的传播。在本文的第一部分中，我们采用一般性抛弃工具来研究经典级别的无效测量学。该分析表明，无质量和巨大的非相互作用颗粒可以穿越大弹跳。然后，我们利用量子场理论技术来评估标量场传播器。在后期制度中，我们发现它类似于平坦的Minkowski空间的标准Feynman繁殖器，而在早期，它控制着大弹跳的传播，并引起了空间相反的两个点之间的明确定义的相关性。
The propagation of a scalar field in an open FLRW bounce-type quantum spacetime is examined, which arises within the framework of the IKKT matrix theory. In the first part of the paper, we employ general-relativity tools to study null and timelike geodesics at the classical level. This analysis reveals that massless and massive non-interacting particles can travel across the big bounce. We then exploit quantum-field-theory techniques to evaluate the scalar field propagator. In the late-time regime, we find that it resembles the standard Feynman propagator of flat Minkowski space, whereas for early times it governs the propagation across the big bounce and gives rise to a well-defined correlation between two points on opposite sheets of the spacetime.
