Vacuum energy decay from a q-bubble
| Autor: | Klinkhamer, F. R., Santillan, O. P., Volovik, G. E., Zhou, A. |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | MDPI Physics 1 (2019), 321-338 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.3390/physics1030024 |
| Popis: | We consider a finite-size spherical bubble with a nonequilibrium value of the $q$-field, where the bubble is immersed in an infinite vacuum with the constant equilibrium value $q_{0}$ for the $q$-field (this $q_{0}$ has already cancelled an initial cosmological constant). Numerical results are presented for the time evolution of such a $q$-bubble with gravity turned off and with gravity turned on. For small enough bubbles and a $q$-field energy scale sufficiently below the gravitational energy scale $E_\text{Planck}$, the vacuum energy of the $q$-bubble is found to disperse completely. For large enough bubbles and a finite value of $E_\text{Planck}$, the vacuum energy of the $q$-bubble disperses only partially and there occurs gravitational collapse near the bubble center. Comment: 21 pages, 9 figures, v5: published version |
| Databáze: | arXiv |
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