New class of inhomogeneous cosmological perfect-fluid solutions without big-bang singularity
Journal Article
·
· Physical Review Letters; (USA)
- Grupo de Fisica Teorica, Departamento de Fisica, Ingenieria y Radiologia Medica, Facultad de Ciencias, Universidad de Salamanca, 37008 Salmanaca (Spain)
A new class of exact solutions to Einstein's field equations with a perfect-fluid source is presented. The solutions describe spatially inhomogeneous cosmological models and have a realistic equation of state {ital p}={rho}/3. The properties of the solutions are discussed. The most remarkable feature is the absence of an initial singularity, the curvature and matter invariants being regular and smooth everywhere. We also present an alternative interpretation of the solution as a globally regular cylindrically symmetric space-time.
- OSTI ID:
- 6734391
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:19; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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