Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-03-21
Class.Quant.Grav. 19 (2002) 4511-4524
Physics
High Energy Physics
High Energy Physics - Theory
25 pages, Latex; references and footnotes added (other minor changes)
Scientific paper
10.1088/0264-9381/19/17/303
Observational evidence suggests that our universe is currently evolving towards an asymptotically de Sitter future. Unfortunately and in spite of much recent attention, various quantum, holographic and cosmological aspects of de Sitter space remain quite enigmatic. With such intrigue in mind, this paper considers the ``construction'' of a toy model that describes an asymptotically de Sitter universe. More specifically, we add fluid-like matter to an otherwise purely de Sitter spacetime, formulate the relevant solutions and then discuss the cosmological and holographic implications. If the objective is to construct an asymptotically de Sitter universe that is free of singularities and has a straightforward holographic interpretation, then the results of this analysis are decidedly negative. Nonetheless, this toy model nicely illustrates the pitfalls that might be encountered in a more realistic type of construction.
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