Friction Domination with Superconducting Strings

Details Friction Domination with Superconducting Strings Friction Domination with Superconducting Strings

1997-05-13

arxiv.org/abs/hep-ph/9705302v1

Phys.Rev.D57:692-701,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages. LaTeX. Submitted to Physics Letters B

Scientific paper

10.1103/PhysRevD.57.692

We investigate the evolution of a superconducting string network with arbitrary, constant string current in the friction dominated regime. In the absence of an external magnetic field the network always reaches a scaling solution. However, for string current stronger than a critical value, it is different than the usual, horizon-scaling of the non-superconducting string case. In this case the friction domination era never ends. Whilst the superconducting string network can be much denser than usually assumed, it can never dominate the universe energy density. It can, however, influence the cosmic microwave background radiation and the formation of large scale structure. When embedded in a primordial magnetic field of sufficient strength, the network never reaches scaling and, thus, eventually dominates the universe evolution.

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