Small-scale structure on cosmic strings

Details Small-scale structure on cosmic strings Small-scale structure on cosmic strings

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvd..48.3422a&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 48, Issue 8, 15 October 1993, pp.R3422-R3426

Physics

8

Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We extend a linear-kink model of small-scale structure on cosmic strings and show how it is equivalent to an earlier two-scale model. By reconsidering the connection between the rate of loop production and the linear-kink density we correctly predict the build-up of small-scale structure currently seen in those simulations which neglect the gravitational back reaction. After including the gravitational back reaction we determine the full evolution of the small-scale structure, coupled to loop production and gravitational radiation. We confirm that the inclusion of the gravitational back reaction leads inevitably to the scaling of this structure, and that as many as 104 kinks may persist on an horizon-sized segment of string.

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