Field theory simulation of Abelian-Higgs cosmic string cusps

Abstract

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.

9 pages, RevTeX, 13 figures with epsf

References in corpus (5)

• Cosmic strings
• Numerical simulations of string networks in the Abelian-Higgs model
• The form of cosmic string cusps
• Gamma Ray Signatures from Ordinary Cosmic Strings
• Gamma Ray Bursts from Ordinary Cosmic Strings

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