Numerical Simulations of String Networks in the Abelian-Higgs Model

Graham Vincent, Nuno D. Antunes, and Mark Hindmarsh
Phys. Rev. Lett. 80, 2277 – Published 16 March 1998
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Abstract

We present the results of a field theory simulation of networks of strings in the Abelian-Higgs model. From a random initial configuration the resulting vortex tangle approaches a self-similar regime in which the length density of lines of zeros of φ reduces as t2. The network loses energy directly into scalar and gauge radiations supporting a recent claim that particle production, not gravitational radiation, is the dominant energy loss mechanism for cosmic strings. This means that cosmic strings in grand unified theories are severely constrained by high energy cosmic ray fluxes: Either they are ruled out, or an implausibly small fraction of their energy ends up in quarks and leptons.

  • Received 27 August 1997

DOI:https://doi.org/10.1103/PhysRevLett.80.2277

©1998 American Physical Society

Authors & Affiliations

Graham Vincent, Nuno D. Antunes, and Mark Hindmarsh

  • Centre for Theoretical Physics, University of Sussex, Brighton BN1 9QJ, United Kingdom

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Issue

Vol. 80, Iss. 11 — 16 March 1998

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