# A simple model for the evolution of a non-Abelian cosmic string network

## Abstract

In this paper we present the results of numerical simulations intended to study the behavior of non-Abelian cosmic strings networks. In particular we are interested in discussing the variations in the asymptotic behavior of the system as we variate the number of generators for the topological defects. A simple model which allows for cosmic strings is presented and its lattice discretization is discussed. The evolution of the generated cosmic string networks is then studied for different values for the number of generators for the topological defects. Scaling solution appears to be approached in most cases and we present an argument to justify the lack of scaling for the residual cases.

- Authors:

- Istituto Nazionale di Fisica Nucleare, sez. Pisa, Largo Bruno Pontecorvo 3, 56126 Pisa (Italy)
- AstroParticule et Cosmologie, Université Paris Diderot, CNRS, CEA, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13 (France)

- Publication Date:

- OSTI Identifier:
- 22679674

- Resource Type:
- Journal Article

- Journal Name:
- Journal of Cosmology and Astroparticle Physics

- Additional Journal Information:
- Journal Volume: 2016; Journal Issue: 06; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASYMPTOTIC SOLUTIONS; COMPUTERIZED SIMULATION; COSMOLOGICAL MODELS; DEFECTS; STRING MODELS

### Citation Formats

```
Cella, G., and Pieroni, M., E-mail: giancarlo.cella@pi.infn.it, E-mail: mauro.pieroni@apc.univ-paris7.fr.
```*A simple model for the evolution of a non-Abelian cosmic string network*. United States: N. p., 2016.
Web. doi:10.1088/1475-7516/2016/06/034.

```
Cella, G., & Pieroni, M., E-mail: giancarlo.cella@pi.infn.it, E-mail: mauro.pieroni@apc.univ-paris7.fr.
```*A simple model for the evolution of a non-Abelian cosmic string network*. United States. doi:10.1088/1475-7516/2016/06/034.

```
Cella, G., and Pieroni, M., E-mail: giancarlo.cella@pi.infn.it, E-mail: mauro.pieroni@apc.univ-paris7.fr. Wed .
"A simple model for the evolution of a non-Abelian cosmic string network". United States. doi:10.1088/1475-7516/2016/06/034.
```

```
@article{osti_22679674,
```

title = {A simple model for the evolution of a non-Abelian cosmic string network},

author = {Cella, G. and Pieroni, M., E-mail: giancarlo.cella@pi.infn.it, E-mail: mauro.pieroni@apc.univ-paris7.fr},

abstractNote = {In this paper we present the results of numerical simulations intended to study the behavior of non-Abelian cosmic strings networks. In particular we are interested in discussing the variations in the asymptotic behavior of the system as we variate the number of generators for the topological defects. A simple model which allows for cosmic strings is presented and its lattice discretization is discussed. The evolution of the generated cosmic string networks is then studied for different values for the number of generators for the topological defects. Scaling solution appears to be approached in most cases and we present an argument to justify the lack of scaling for the residual cases.},

doi = {10.1088/1475-7516/2016/06/034},

journal = {Journal of Cosmology and Astroparticle Physics},

issn = {1475-7516},

number = 06,

volume = 2016,

place = {United States},

year = {2016},

month = {6}

}

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