Cosmology with a long-range repulsive force

Details Cosmology with a long-range repulsive force Cosmology with a long-range repulsive force

2002-05-06

arxiv.org/abs/hep-ph/0205055v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at DARK 2002, Cape Town, South Africa 4-9 Feb. 2002. 8 pages, LaTeX, 5 figures

Scientific paper

We discuss the properties of a cosmology dominated by a charged scalar field with a repulsive, long-range self-interaction. The interaction, in the form of a vector field with a tiny mass, can have a dramatic effect on the evolution of the universe, with interesting consequences -- including in some cases accelerated expansion. One characteristic of the model is an oscillating deceleration parameter, which would potentially allow it to be distinguished from other scalar field models such as quintessence.

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