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arXiv · 0907.1342

Cosmological acceleration from a gas of strings

Francesc Ferrer
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Abstract

In string gas cosmology, the extra dimensions of the underlying theory are kept at a microscopic scale by a gas of strings. In the matter-dominated era, however, dust pressure can lead to oscillations of the extra dimensions and to acceleration in the three visible dimensions, even with a vanishing cosmological term. We review the resulting oscillating expansion history, that provides an acceptable fit to the observed accelerated expansion of the Universe.

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Francesc Ferrer. 2009-07-08. Cosmological acceleration from a gas of strings. https://doi.org/10.1016/j.nuclphysbps.2009.07.039

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