Accelerated Universes from type IIA Compactifications

2013/10/30 by Johan Blåbäck, Ulf Danielsson, Giuseppe Dibitetto · 1 citation
Physics and Astronomy · #hep-th

paper · pdf · doi:10.1088/1475-7516/2014/03/003

22 pages, 3 figures and 5 tables

arxiv created 2013/10/30 · arxiv updated 2015/06/17

Abstract

We study slow-roll accelerating cosmologies arising from geometric compactifications of type IIA string theory on T⁶/(ℤ₂ × ℤ₂). 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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