Cosmic-string loop self-intersections and intercommuting

Details Cosmic-string loop self-intersections and intercommuting Cosmic-string loop self-intersections and intercommuting

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.1768v&link_type=abstract

Physical Review D (Particles and Fields), Volume 39, Issue 6, 15 March 1989, pp.1768-1771

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

Scientific paper

We find that the self-intersection of a closed curve (loop) is characterized by a jump in the self-linkage number of the loop. This is used to study the self-intersections of a mathematical closed curve evolving according to the Nambu action. We also show that segments of cosmic string cannot simply pass through one another at a self-intersection. Instead, intercommuting is found to be energetically favorable in the case of untwisted global strings.

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