Mj. Thatcher et Mj. Morgan, SUPERCONDUCTING COSMIC STRINGS WITH EXOTIC SPACETIME - ART. NO. 043505, Physical review. D. Particles and fields, 5804(4), 1998, pp. 3505
The metric for a superconducting cosmic string with constant momentum
has been calculated analytically and numerically using the full Einste
in field equations. We show that the string metric has mixed component
s, which for heavy strings (eta(phi) similar to 10(18) GeV) describe a
spacetime with exotic properties. In the string spacetime particles a
re deflected (in the z-direction) as they approach the string, effecti
vely isolating the defect from the outside Universe. The inclusion of
gravity into models of charged strings and vortons is expected to have
significant cosmological implications.