Dark Energy and the Fate of the Universe

Details Dark Energy and the Fate of the Universe Dark Energy and the Fate of the Universe

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..apru12001k&link_type=abstract

American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #U12.001

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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 M-theory and 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 quite general: 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 next 10-100 billion years. The theories of this type have certain distinguishing features that can be tested by cosmological observations.

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