Extending the velocity dependent one scale string evolution model
Mar, 2000Citations per year
Abstract: (arXiv)
We provide a general overview of the velocity-dependent one-scale model for cosmic string evolution and discuss two further extensions to it. We introduce and justify a new ansatz for the momentum parameter , and also incorporate the effect of radiation backreaction. We thus discuss the evolution of the basic large-scale features of cosmic string networks in all relevant cosmological scenarios, concentrating in particular on the `scaling' solutions relevant for each case. In a companion paper, we show, by comparing with numerical simulations, that this model provides an accurate description of the large-scale features of cosmic string networks.Note:
- 16 pages, 6 figures, submitted to Phys. Rev. D
- 11.27.+d
- 98.80.Cq
- astrophysics: string
- velocity dependence
- momentum
- radiation: back reaction
- scaling
- space-time: Robertson-Walker
- grand unified theory
- numerical calculations
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