Criteria of existence for bounce solutions in false vacuum decay with gravity. (25th January 2018)

• Record Type: Journal Article
• Authors: Wong, Nicholas W K; Gong, Jiangbin; Lim, Yen-Kheng; Wang, Qing-hai
• Is Part Of: Classical and quantum gravity. Volume 35:Number 4(2018:Feb.)
• Publication Date: 2018-01-25
• Subjects: inflation -- instantons -- false vacuum decay -- early universe; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/aaa4ea
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: The bounce solutions of self-interacting scalar fields coupled to gravity are studied using a semi-classical approach. We found that bounce solutions have a maximum required barrier curvature, in addition to the known minimum required barrier curvature. In particular, as the maximum barrier curvature is approached, the scale factor of the well-known Coleman–De Luccia (CDL) bounce solutions become divergent. Unlike the CDL or its more general oscillating bounce counterparts, this cannot be considered as a subset of the Hawking–Turok solution.