Equatorial string loops in Vaidya-Papapetrou spacetime

Details Equatorial string loops in Vaidya-Papapetrou spacetime Equatorial string loops in Vaidya-Papapetrou spacetime

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phrvd..51.2744e&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 51, Issue 6, 15 March 1995, pp.2744-2750

Physics

1

Singularities And Cosmic Censorship, Extended Classical Solutions, Cosmic Strings, Domain Walls, Texture

Scientific paper

We examine the motion of test equatorial string loops in a self-similar Vaidya-Papapetrou spacetime. We obtain different qualitative behaviors for values of the power parameter λ above and below the critical value λc=1/8. For λ<λc strings can nucleate at the singularity and propagate outwards to a maximum radius, after which they recollapse. The collapsing behavior is universal (i.e., λ-independent), whereas the nucleation critical exponents are λ dependent.

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