Affiliation:
1. School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, UK
Abstract
Cosmic strings are predicted by many field-theory models, and may have been formed at a symmetry-breaking transition early in the history of the universe, such as that associated with grand unification. They could have important cosmological effects. Scenarios suggested by fundamental string theory or M-theory, in particular the popular idea of brane inflation, also strongly suggest the appearance of similar structures. Here we review the reasons for postulating the existence of cosmic strings or superstrings, the various possible ways in which they might be detected observationally and the special features that might discriminate between ordinary cosmic strings and superstrings.
Subject
General Physics and Astronomy,General Engineering,General Mathematics
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