Cosmological Consequences of Anti-gravitation

Details Cosmological Consequences of Anti-gravitation Cosmological Consequences of Anti-gravitation

2006-05-12

arxiv.org/abs/gr-qc/0605083v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

are welcome

Scientific paper

The dynamics of a universe with an anti-gravitating contribution to the matter content is examined. The modified Friedmann equations are derived, and it is shown that anti-gravitating radiation is the slowest component to dilute when the universe expands. Assuming an interaction between both kinds of matter which becomes important at Planckian densities, it is found that the universe undergoes a periodic cycle of contraction and expansion. Furthermore, the possibility of energy loss in our universe through separation of both types of matter is discussed.

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