Status Report

Dark Energy and the Fate of the Universe

By SpaceRef Editor
January 7, 2003
Filed under , ,

Astrophysics, abstract
astro-ph/0301087


From: Andrei Linde <[email protected]>
Date: Mon, 6 Jan 2003 22:23:44 GMT (96kb)

Dark Energy and the Fate of the Universe


Authors:
Renata Kallosh,
Andrei Linde

Comments: 7pages, 6 figs


It is often assumed that in the course of the evolution of the universe, the
dark energy either vanishes or becomes a positive constant. However, recently
it was shown that in many models based on supergravity, the dark energy
eventually becomes negative and the universe collapses within the time
comparable to the present age of the universe. We will show that this
conclusion is not limited to the models based on supergravity: In many models
describing the present stage of acceleration of the universe, the dark energy
eventually becomes negative, which triggers the collapse of the universe within
the time t = 10^10-10^11 years. The theories of this type have certain
distinguishing features that can be tested by cosmological observations.

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