Heterotic Cosmic Strings

Details Heterotic Cosmic Strings Heterotic Cosmic Strings

2005-10-08

arxiv.org/abs/hep-th/0510066v2

Phys.Rev.D74:045023,2006

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, v2: section and references added

Scientific paper

10.1103/PhysRevD.74.045023

We show that all three conditions for the cosmological relevance of heterotic cosmic strings, the right tension, stability and a production mechanism at the end of inflation, can be met in the strongly coupled M-theory regime. Whereas cosmic strings generated from weakly coupled heterotic strings have the well known problems posed by Witten in 1985, we show that strings arising from M5-branes wrapped around 4-cycles (divisors) of a Calabi-Yau in heterotic M-theory compactifications, solve these problems in an elegant fashion.

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