Is There A String Theory Landscape

Details Is There A String Theory Landscape Is There A String Theory Landscape

2003-09-17

arxiv.org/abs/hep-th/0309170v2

JHEP 0408:058,2004

Physics

High Energy Physics

High Energy Physics - Theory

39 pages, Latex, ``Terminology surrounding the anthropic principle revised to conform with accepted usage. More history of the

Scientific paper

10.1088/1126-6708/2004/08/058

We examine recent claims of a large set of flux compactification solutions of string theory. We conclude that the arguments for AdS solutions are plausible. The analysis of meta-stable dS solutions inevitably leads to situations where long distance effective field theory breaks down. We then examine whether these solutions are likely to lead to a description of the real world. We conclude that one must invoke a strong version of the anthropic principle. We explain why it is likely that this leads to a prediction of low energy supersymmetry breaking, but that many features of anthropically selected flux compactifications are likely to disagree with experiment.

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