Is the island universe model consistent with observations?
Abstract
We study the island universe model, in which initially the universe is in a cosmological constant sea, then the local quantum fluctuations violating the null energy condition create the islands of matter, some of which might correspond to our observable universe. We examine the possibility that the island universe model is regarded as an alternative scenario of the origin of observable universe.
- Publication:
-
Physical Review D
- Pub Date:
- November 2005
- DOI:
- 10.1103/PhysRevD.72.103513
- arXiv:
- arXiv:astro-ph/0506072
- Bibcode:
- 2005PhRvD..72j3513P
- Keywords:
-
- 98.80.Cq;
- Particle-theory and field-theory models of the early Universe;
- Astrophysics;
- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- E-Print:
- 11 pages, 2 eps figures, RevTex4, some changes have been made partly according to the referees' comments, refs. added, published in PRD72, 103513 (2005)