Quantum Mechanics in the Tunneling Universe
Quantum Mechanics in the Tunneling Universe
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隧道宇宙中的量子力学
DOI：
10.1016/0370-2693(84)90088-1
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发表时间：
1984
影响因子：
4.4
通讯作者：
V. Rubakov
中科院分区：
文献类型：
--
作者：
V. Rubakov
本文讨论了具有正宇宙学常数的均匀各向同性封闭宇宙中粒子的产生，该宇宙从Friedmann机制（或从“无”）隧穿到类De Sitter机制。在假设隧穿的准经典性质和忽略产生粒子的反作用的情况下，我们导出了隧穿宇宙中量子场论的基本方程。然后，我们表明，在隧穿过程中，粒子的创建是灾难性的，至少在大规模标量场共形耦合到重力的模型，并讨论了反反应的隧穿过程中可能产生的影响。
We discuss the particle creation in a closed homogeneous and isotropic universe with positive cosmological constant, which tunnels from the Friedmann regime (or from “nothing”) to a De Sitter-like one. Assuming the quasiclassical character of tunneling and neglecting the back reaction of the created particles, we derive the basic equation of the quantum field theory in the tunneling universe. We then show that during tunneling, particle creation is catastrophic, at least in the model of massive scalar fields conformally coupled to gravity, and discuss the possible effects of the back reaction on the tunneling process.