Friday, April 6, 2012

1204.1270 (Betti Hartmann et al.)

Semi-local cosmic strings: stability and chiral currents    [PDF]

Betti Hartmann, Patrick Peter
We present the simplest possible model for a semi-local string defect in which a U(1) gauged subgroup of an otherwise global SU(2) is broken to produce local cosmic strings endowed with current-carrying properties. Restricting attention to type II vortices for which the non current-carrying state is unstable, we show that a condensate must form microscopically and macroscopically evolve towards a chiral configuration. This process could provide a new mechanism for reducing the number of equilibrium angular momentum supported loop configurations (vorton like).
View original: http://arxiv.org/abs/1204.1270

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