Cosmic Acceleration and M-Theory
高能物理 - 理论
2007-05-23 v2
摘要
The status of accelerating four-dimensional universes obtained by time-dependent compactifications of 10 or 11 dimensional supergravity is reviewed, as is the `no-go' theorem that they evade. All flat cosmologies for a simple exponential potential are found explicitly. It is noted that transient acceleration is generic, and unavoidable for `flux' compactifications. Included is an eternally accelerating flat cosmology without a future event horizon.
引用
@article{arxiv.hep-th/0308149,
title = {Cosmic Acceleration and M-Theory},
author = {Paul K. Townsend},
journal= {arXiv preprint arXiv:hep-th/0308149},
year = {2007}
}
备注
10 pp. Latex. Minor corrections made and Ref. added. To appear in proceedings of ICMP2003, Lisbon, Portugal, July 2003