1997/06/03 by Minos Axenides, Leandros Perivolaropoulos, Axenides, Minos +1
Earth and Planetary Sciences · Physics and Astronomy · #Aeolian processes and effects #astro-ph #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9706226
11 pages including 7 embedded postscript figures, use latex with ppeuc.sty (included). see also http://www.edu.physics.uch.gr/~leandros Talk presented at the Particle Physics and the Early Universe Conference at the University of Cambridge, 7-11 April 1997
We review recent work on a new class of topological defects which possess a nonsymmetric core. They arise in scalar field theories with global symmetries, U(1) for domain walls and SU(2) for vortices, which are explicitly broken to Z2 and U(1) respectively. Both of the latter symmetries are spontaneously broken. For a particular range of parameters both types of defect solutions are shown to become unstable and decay to the well known stable walls and vortices with symmetric cores.