Analytic Approaches to the Study of Small Scale Structure on Cosmic String Networks

Details Analytic Approaches to the Study of Small Scale Structure on Cosmic String Networks Analytic Approaches to the Study of Small Scale Structure on Cosmic String Networks

2008-12-20

arxiv.org/abs/0812.4020v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

119 pages, 14 figures, Ph.D. thesis (advisor: Joseph G. Polchinski)

Scientific paper

We present an analytic model specifically designed to address the long standing issue of small scale structure on cosmic string networks. The model is derived from the microscopic string equations, together with a few motivated assumptions. The resulting form of the correlation between two points on a string is exploited to study smoothing by gravitational radiation, loop formation and lensing by cosmic strings. In addition, the properties of the small loop population and the possibility of detecting gravitational waves generated by their lowest harmonics are investigated. Whenever possible, we compare the predictions of the model to the most recent numerical simulations of cosmic string networks.

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