Formation and evolution of kinky vortons

Details Formation and evolution of kinky vortons Formation and evolution of kinky vortons

2009-08-13

arxiv.org/abs/0908.1865v1

JCAP 0909:039,2009

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1088/1475-7516/2009/09/039

We present field theory simulations of a model with Z_2xU(1) symmetry in (2+1)-dimensions. This model has two discrete vacua, allowing for domain walls, and also a conserved Noether charge. For initial conditions in which the field is placed in one of the vacua and given a homogeneous background charge, we find that the number of walls does not scale in the standard way. We argue that the Noether charge and current become localized on the walls, forming kinky vortons, (2+1) dimensional analogues of cosmic vortons. These loops of wall can be long-lived, or even stable, depending on the precise characteristics. We suggest that our simulations illustrate a possible mechanism for dynamical frustration of domain wall networks and that cosmic vortons will form naturally in U(1)xU(1) models.

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