论文标题
de Sitter中的相变：量子校正
Phase Transitions in de Sitter: Quantum Corrections
论文作者
论文摘要
我们使用两种方法：使用两种方法，以高哈勃速率在DE Sitter空间中研究了错误的真空状态的衰减速率，该方法是完全量子机械的，但依赖于鞍点的近似值，而Starobinsky-yokoyama-yokoyama andokoyama随机方法是非扰动，但不包括量子效应。我们使用流量集群的方法以一环的顺序计算鹰腐烂速率，并证明在其有效性域中，它是通过使用单循环约束有效潜在的随机计算来重现的。这表明随机方法以及约束有效电位可用于准确描述超出鞍点近似之外的真空衰减。
We investigate the decay rate of a false vacuum state in de Sitter space at high Hubble rates, using two methods: the Hawking-Moss instanton method which is fully quantum mechanical but relies on the saddle-point approximation, and the Starobinsky-Yokoyama stochastic approach which is non-perturbative but does not include quantum effects. We use the flux-over-population method to compute the Hawking-Moss decay rate at one-loop order, and demonstrate that in its domain of validity, it is reproduced by the stochastic calculation using the one-loop constraint effective potential. This suggests that the stochastic approach together with the constraint effective potential can be used to accurately describe vacuum decay beyond the saddle-point approximation.
