Lifetime of quasistationary wiggly loops

Details Lifetime of quasistationary wiggly loops Lifetime of quasistationary wiggly loops

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phrvd..53.6847m&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 53, Issue 12, 15 June 1996, pp.6847-6851

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Extended Classical Solutions, Cosmic Strings, Domain Walls, Texture, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

The existence of a microstructure in cosmic string networks is now a well-established fact. One of its dynamical consequences is that there exists quasistationary loop states whose large scale structure is stationary. It has been conjectured that under certain conditions such loops might radiate little energy and, thus, have a much larger lifetime than those of other oscillating loop solutions considered previously. As a complement to a previous qualitative modelization of the gravitational decay of such loops, this paper evaluates the quantitative order of magnitude of the gravitational power radiated by a generic class of quasicircular solutions and shows that it should be of the same order of magnitude as that of previously studied loops. As a result, quasistationary loop states lose much of their interest in cosmic string networks and should be rather rare.

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