SU(N)/ZN self-interactions of closed strings

A. Davidson, Y. Verbin

Research output: Contribution to journalArticlepeer-review


The non-abelian self-interactions of closed cosmic strings, carrying SU(N)/ZN electric charges and magnetic fluxes, are analyzed. Following the Nielsen-Olesen geometrical approach, the world sheet of such a loop is non-trivially embedded in R4 × CPN-1. The string evolution is then governed by a generalized Weierstrass potential exhibiting discretely degenerate minima. The corresponding soliton solutions are dynamically non-contractible both in real and internal spaces.

Original languageEnglish
Pages (from-to)24-30
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-2
StatePublished - 6 Feb 1992


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