Quantum Fluctuations and New Instantons II: Quartic Unbounded Potential
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2020
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| _version_ | 1866912668990832640 |
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| author | Mukhanov, Viatcheslav Rabinovici, Eliezer Sorin, Alexander |
| author_facet | Mukhanov, Viatcheslav Rabinovici, Eliezer Sorin, Alexander |
| contents | We study the fate of a false vacuum in the case of a potential that contains a portion which is quartic and unbounded. We first prove that an $O(4)$ invariant instanton with the Coleman boundary conditions does not exist in this case. This, however, does not imply that the false vacuum does not decay. We show how the quantum fluctuations may regularize the singular classical solutions. This gives rise to a new class of $O(4)$ invariant regularized instantons which describe the vacuum instability in the absence of the Coleman instanton. We derive the corresponding solutions and calculate the decay rate they induce. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2009_12444 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Quantum Fluctuations and New Instantons II: Quartic Unbounded Potential Mukhanov, Viatcheslav Rabinovici, Eliezer Sorin, Alexander High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Quantum Physics We study the fate of a false vacuum in the case of a potential that contains a portion which is quartic and unbounded. We first prove that an $O(4)$ invariant instanton with the Coleman boundary conditions does not exist in this case. This, however, does not imply that the false vacuum does not decay. We show how the quantum fluctuations may regularize the singular classical solutions. This gives rise to a new class of $O(4)$ invariant regularized instantons which describe the vacuum instability in the absence of the Coleman instanton. We derive the corresponding solutions and calculate the decay rate they induce. |
| title | Quantum Fluctuations and New Instantons II: Quartic Unbounded Potential |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Quantum Physics |
| url | https://arxiv.org/abs/2009.12444 |