Field theory simulation of Abelian-Higgs cosmic string cusps

Details Field theory simulation of Abelian-Higgs cosmic string cusps Field theory simulation of Abelian-Higgs cosmic string cusps

1998-12-11

arxiv.org/abs/gr-qc/9812040v1

Phys.Rev. D60 (1999) 023503

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, RevTeX, 13 figures with epsf

Scientific paper

10.1103/PhysRevD.60.023503

We have performed a lattice field theory simulation of cusps in Abelian-Higgs cosmic strings. The results are in accord with the theory that the portion of the strings which overlaps near the cusp is released as radiation. The radius of the string cores which must touch to produce the evaporation is approximately $r = 1$ in natural units. In general, the modifications to the string shape due to the cusp may produce many cusps later in the evolution of a string loop, but these later cusps will be much smaller in magnitude and more closely resemble kinks.

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