Particle production induced by vacuum decay in real time dynamics

Soichiro Hashiba, Yusuke Yamada, Jun'ichi Yokoyama

研究成果: Article査読

4 被引用数 (Scopus)

抄録

We discuss particle production associated with vacuum decay, which changes the mass of a scalar field coupled to a background field which induces the decay. By utilizing the Stokes phenomenon, we can optimally track the time evolution of the mode function and hence calculate particle production properly. In particular, we use real time formalisms for vacuum decay in Minkowski and de Sitter spacetime together with the Stokes phenomenon method. For each case, we consider the flyover vacuum decay model and stochastic inflation, respectively. Within the real time formalism, the particle production can be viewed as that caused by nontrivial external fields. This gives us a novel perspective of the real time formalism of vacuum decay.

本文言語English
論文番号045006
ジャーナルPhysical Review D
103
4
DOI
出版ステータスPublished - 2021 2月 5
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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