Tufts/CfA/MIT Cosmology Seminar, at Tufts:

                     Tuesday October 3, 1995
                             2:30 pm
                          Robinson 258
        Refreshments at 2:15pm in Robinson 251 (Knipp Library)

  "Superconducting Cosmic String Dynamics, Vortons and Loop Population"

                          Dr. Xavier Martin
                          Tufts University

Abstract: 
A formalism for superconducting string dynamics is presented. This formalism 
completely avoids intrinsic coordinates and can cover a wide range of strings 
as long as their equation of state is known. It is then shown that there 
exists a wide class of equilibrium states sustained by centrifugal force, 
called vortons. The criteria for these solutions to be stable is investigated.
The population of vortons that can be expected if superconducting strings are 
formed in the universe will be discussed, with emphasis on the more
cosmologically interesting case of strings lighter than the GUT scale.