Back to Search
Start Over
Gravitational Condensate Stars: An Alternative to Black Holes.
- Source :
-
Universe (2218-1997) . Feb2023, Vol. 9 Issue 2, p88. 15p. - Publication Year :
- 2023
-
Abstract
- A new final endpoint of complete gravitational collapse is proposed. By extending the concept of Bose–Einstein condensation to gravitational systems, a static, spherically symmetric solution to Einstein's equations is obtained, characterized by an interior de Sitter region of p = − ρ gravitational vacuum condensate and an exterior Schwarzschild geometry of arbitrary total mass M. These are separated by a phase boundary with a small but finite thickness ℓ, replacing both the Schwarzschild and de Sitter classical horizons. The resulting collapsed cold, compact object has no singularities, no event horizons, and a globally defined Killing time. Its entropy is maximized under small fluctuations and is given by the standard hydrodynamic entropy of the thin shell, which is of order k B ℓ M c / ℏ , instead of the Bekenstein–Hawking entropy, S B H = 4 π k B G M 2 / ℏ c . Unlike BHs, a collapsed star of this kind is consistent with quantum theory, thermodynamically stable, and suffers from no information paradox. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22181997
- Volume :
- 9
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Universe (2218-1997)
- Publication Type :
- Academic Journal
- Accession number :
- 162157596
- Full Text :
- https://doi.org/10.3390/universe9020088