The Revival of Cosmic Strings

Details The Revival of Cosmic Strings The Revival of Cosmic Strings

2005-10-26

arxiv.org/abs/hep-th/0510227v2

Annalen Phys. 15 (2006) 264-276

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, Invited Lecture in " Pomeranian Workshop in Fundamental Cosmology" (Poland 2005), to be published in Annalen der Phy

Scientific paper

10.1002/andp.200510186

Cosmic strings are one-dimensional topological defects which could have been formed in the early stages of our Universe. They triggered a lot of interest, mainly for their cosmological implications: they could offer an alternative to inflation for the generation of density perturbations. It was shown however that cosmic strings lead to inconsistencies with the measurements of the cosmic microwave background temperature anisotropies. The picture is changed recently. It was shown that, on the one hand, cosmic strings can be generically formed in the framework of supersymmetric grand unified theories and that, on the other hand, cosmic superstrings could play the r\^ole of cosmic strings. There is also some possible observational support. All this lead to a revival of cosmic strings research and this is the topic of my lecture.

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