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arXiv · 1310.8300

Accelerated Universes from type IIA Compactifications

Johan Blåbäck·Ulf Danielsson·Giuseppe Dibitetto
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Abstract

We study slow-roll accelerating cosmologies arising from geometric compactifications of type IIA string theory on $T^{6}/(\mathbb{Z}_{2}\,\times\,\mathbb{Z}_{2})$. With the aid of a genetic algorithm, we are able to find quasi-de Sitter backgrounds with both slow-roll parameters of order $0.1$. Furthermore, we study their evolution by numerically solving the corresponding time-dependent equations of motion, and we show that they actually display a few e-folds of accelerated expansion. Finally, we comment on their perturbative reliability.

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Johan Blåbäck, Ulf Danielsson, Giuseppe Dibitetto. 2013-10-30. Accelerated Universes from type IIA Compactifications. https://doi.org/10.1088/1475-7516%2F2014%2F03%2F003

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