| Autor: |
Cruz, Claudio Nassif, Santos, Rodrigo Francisco dos, Faria Jr, A. C. Amaro de |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Physics of the Dark Universe, Vol. 27, 100454, p.1-10 (2020). OA in: https://www.sciencedirect.com/science/article/pii/S2212686419303553 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.dark.2019.100454 |
| Popis: |
We aim to search for the connection between the spacetime with an invariant minimum speed so-called Symmetrical Special Relativity (SSR) with Lorentz violation and the Gravitational Bose Einstein Condensate (GBEC) as the central core of a star of gravitational vacuum (gravastar), where one normally introduces a cosmological constant for representing an anti-gravity. This usual model of gravastar with an equation of state (EOS) for vacuum energy inside the core will be generalized for many modes of vacuum (dark energy star) in order to circumvent the embarrassment generated by the horizon singularity as the final stage of a gravitational collapse. In the place of the problem of a singularity of an event horizon, we introduce a phase transition between gravity and anti-gravity before reaching the Schwarzschild (divergent) radius $R_S$ for a given coexistence radius $R_{coexistence}$ slightly larger than $R_S$ and slightly smaller than the core radius $R_{core}$ of GBEC, where the metric of the repulsive sector (core of GBEC) would diverge for $r=R_{core}$, so that for such a given radius of phase coexistence $R_SComment: 18 pages. 6 figures |
| Databáze: |
arXiv |
| Externí odkaz: |
|
