Catalytic creation of baby bubble universe with small positive cosmological constant
| Autor: | Yutaka Ookouchi, Issei Koga |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
High Energy Physics - Theory
Physics Nuclear and High Energy Physics Spacetime media_common.quotation_subject Bubble FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Cosmological constant Strings and branes phenomenology General Relativity and Quantum Cosmology Universe Action (physics) Black hole High Energy Physics - Phenomenology Theoretical physics High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) De Sitter universe Phenomenology of Field Theories in Higher Dimensions Minkowski space lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity media_common |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-24 (2019) |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/jhep10(2019)281 |
| Popis: | We investigate the decay of metastable de Sitter, Minkowski and anti-de Sitter vacua catalyzed by a black hole and a cloud of strings. We apply the method to the creation of the four dimensional bubble universe in the five dimensional anti-de Sitter spacetime recently proposed by Banerjee, Danielsson, Dibitetto, Giri and Schillo. We study the bounce action for the creation and find that the bubble with very small cosmological constant, of order $\Lambda^{(4)}/M^2_4 \sim 10^{-120}$, is favored by the catalysis by assuming appropriate mass scales of the black hole and the cloud of strings to reproduce the present energy densities of matter and radiation in the bubble universe. Comment: 25 pages, 8 figures, v3: references added, minor typos corrected. to appear in JHEP, v4: ref added, definition of cosmological constant in section 4 is modified for consistency throughout the paper |
| Databáze: | OpenAIRE |
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