The Ultimate Fate of Life in an Accelerating Universe

Details The Ultimate Fate of Life in an Accelerating Universe The Ultimate Fate of Life in an Accelerating Universe

2002-05-17

arxiv.org/abs/astro-ph/0205279v2

Phys.Lett. B558 (2003) 1-8

Astronomy and Astrophysics

Astrophysics

8 pages, RevTex. (V2 has a reference added, additional minor changes.)

Scientific paper

10.1016/S0370-2693(03)00239-9

The ultimate fate of life in a universe with accelerated expansion is considered. Previous work showed that life cannot go on indefinitely in a universe dominated by a cosmological constant. In this paper we consider instead other models of acceleration (including quintessence and Cardassian expansion). We find that it is possible in these cosmologies for life to persist indefinitely. As an example we study potentials of the form $V \propto \phi^n$ and find the requirement $n < -2$.

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