Decay of Kaluza-Klein Vacuum via Singular Instanton (2404.13917v1)
Abstract: In the decay process of metastable vacua in quantum field theories, the bounce solution, a classical solution in Euclideanized theories, is helpful in calculating the decay rate. Recently, the bounce solution with a conical singularity has attracted wide attention and revealed physical importance. In this paper, we discuss the bubble of nothing solution, which describes the decay process of a five-dimensional Kaluza-Klein vacuum, and study the consequence of including conical singularity. We found that the bounce solution with singularities has a higher decay rate than those without. This effect suggests that a singular solution can play a dominant role in vacuum decay of theories with compact internal space. We also discuss the enhanced decay rate from a thermodynamic perspective.
- Erick J. Weinberg, “Classical Solutions in Quantum Field Theory,” CAMBRIDGE, 2012.
- W. G. Unruh, [arXiv:gr-qc/9803050].
- J. Garriga, [arXiv:hep-th/9804106].
- C. Vafa, [arXiv:hep-th/0509212 [hep-th]].
- L. D. Landau and E. M. Lifshitz, “Statistical Physics, Part 1,” Butterworth-Heinemann, 1980, ISBN 978-0-7506-3372-7.
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.
