Life-time of metastable vacuum in string theory and trans-Planckian censorship conjecture
Abstract It has been known that the catalytic effect makes the life-time of a metastable state shorter. We discuss this phenomenon in a decay process of a metastable vacuum in the brane limit of type IIB string theory. Due to the non-linear effect of the DBI action, the bubble created by the decay m...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-10-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP10(2023)109 |
| _version_ | 1827370613649440768 |
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| author | Sohei Tsukahara |
| author_facet | Sohei Tsukahara |
| author_sort | Sohei Tsukahara |
| collection | DOAJ |
| description | Abstract It has been known that the catalytic effect makes the life-time of a metastable state shorter. We discuss this phenomenon in a decay process of a metastable vacuum in the brane limit of type IIB string theory. Due to the non-linear effect of the DBI action, the bubble created by the decay makes an energetically favorable bound state with an impurity that plays the role of catalyst, which is quite specific to this model and different from other catalysts such as a back hole. Furthermore, we found that this low-energy effective theory around almost unstable regions reduces to a simple quantum mechanical system, and the vacuum life-time can be calculated using known results, even beyond the WKB approximation. Finally, we compare the life-time of the vacuum with the Trans-Planckian Censorship Conjecture (TCC) and find that there is a nonzero window to satisfy the TCC condition for g s ≲ O $$ \mathcal{O} $$ (1). |
| first_indexed | 2024-03-08T10:18:05Z |
| format | Article |
| id | doaj.art-c8963e06f897450d94d1a22ecfd770ea |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-08T10:18:05Z |
| publishDate | 2023-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-c8963e06f897450d94d1a22ecfd770ea2024-01-28T12:20:40ZengSpringerOpenJournal of High Energy Physics1029-84792023-10-0120231013510.1007/JHEP10(2023)109Life-time of metastable vacuum in string theory and trans-Planckian censorship conjectureSohei Tsukahara0Department of Physics, Kyushu UniversityAbstract It has been known that the catalytic effect makes the life-time of a metastable state shorter. We discuss this phenomenon in a decay process of a metastable vacuum in the brane limit of type IIB string theory. Due to the non-linear effect of the DBI action, the bubble created by the decay makes an energetically favorable bound state with an impurity that plays the role of catalyst, which is quite specific to this model and different from other catalysts such as a back hole. Furthermore, we found that this low-energy effective theory around almost unstable regions reduces to a simple quantum mechanical system, and the vacuum life-time can be calculated using known results, even beyond the WKB approximation. Finally, we compare the life-time of the vacuum with the Trans-Planckian Censorship Conjecture (TCC) and find that there is a nonzero window to satisfy the TCC condition for g s ≲ O $$ \mathcal{O} $$ (1).https://doi.org/10.1007/JHEP10(2023)109String and Brane PhenomenologyD-BranesSuperstring Vacua |
| spellingShingle | Sohei Tsukahara Life-time of metastable vacuum in string theory and trans-Planckian censorship conjecture Journal of High Energy Physics String and Brane Phenomenology D-Branes Superstring Vacua |
| title | Life-time of metastable vacuum in string theory and trans-Planckian censorship conjecture |
| title_full | Life-time of metastable vacuum in string theory and trans-Planckian censorship conjecture |
| title_fullStr | Life-time of metastable vacuum in string theory and trans-Planckian censorship conjecture |
| title_full_unstemmed | Life-time of metastable vacuum in string theory and trans-Planckian censorship conjecture |
| title_short | Life-time of metastable vacuum in string theory and trans-Planckian censorship conjecture |
| title_sort | life time of metastable vacuum in string theory and trans planckian censorship conjecture |
| topic | String and Brane Phenomenology D-Branes Superstring Vacua |
| url | https://doi.org/10.1007/JHEP10(2023)109 |
| work_keys_str_mv | AT soheitsukahara lifetimeofmetastablevacuuminstringtheoryandtransplanckiancensorshipconjecture |