Tilt and phantom cosmology
| Autor: | Woei Chet Lim, Sigbjørn Hervik, Alan Coley |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
High Energy Physics - Theory
Physics Equation of state Nuclear and High Energy Physics 010308 nuclear & particles physics Astrophysics (astro-ph) FOS: Physical sciences Perfect fluid General Relativity and Quantum Cosmology (gr-qc) Astrophysics 16. Peace & justice Fluid models 01 natural sciences Instability General Relativity and Quantum Cosmology Imaging phantom Cosmology Classical mechanics Tilt (optics) High Energy Physics - Theory (hep-th) 0103 physical sciences Proper time Mathematics::Representation Theory 010306 general physics |
| Zdroj: | Physics Letters B. 638(4):310-313 |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/j.physletb.2006.05.048 |
| Popis: | We show that in tilting perfect fluid cosmological models with an ultra-radiative equation of state, generically the tilt becomes extreme at late times and, as the tilt instability sets in, observers moving with the tilting fluid will experience singular behaviour in which infinite expansion is reached within a finite proper time, similar to that of phantom cosmology (but without the need for exotic forms of matter). 9 pages, v2: more discussion, added references |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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