On the gauge invariance of the decay rate of false vacuum
On the gauge invariance of the decay rate of false vacuum
复制标题
假真空衰减率的规范不变性
DOI：
10.1016/j.physletb.2017.05.057
复制
发表时间：
2017
影响因子：
4.4
通讯作者：
Shoji Yutaro
中科院分区：
文献类型：
--
作者：
Endo Motoi;Moroi Takeo;Nojiri Mihoko M.;Shoji Yutaro
对于引起假真空衰减的标量场具有规范量子数的模型，研究了假真空衰减率的规范不变性。为了计算衰减率，人们应该积分出连接假真空和真真空的经典路径周围的场波动（即所谓的弹跳）。针对假真空中规范对称被打破的情况，我们给出了一种系统的积分方法，并给出了假真空衰减率的一个明显的规范不变公式。
We study the gauge invariance of the decay rate of the false vacuum for the model in which the scalar field responsible for the false vacuum decay has gauge quantum number. In order to calculate the decay rate, one should integrate out the field fluctuations around the classical path connecting the false and true vacua (i.e., so-called bounce). Concentrating on the case where the gauge symmetry is broken in the false vacuum, we show a systematic way to perform such an integration and present a manifestly gauge-invariant formula of the decay rate of the false vacuum.