
%0 Journal Article
%A Morgan, MJ 
%A Tat Hin, Tan 
%T Topological Effects of a Circular Cosmic String
%J Australian Journal of Physics
%D 1996/06/01
%V 49
%N 3
%P 607-612
%K 
%R https://doi.org/10.1071/PH960607
%U https://www.publish.csiro.au/paper/PH960607 
%X The behaviour of a quantum particle in the spacetime region exterior to a circular cosmic string is studied by constructing a connection one-form in the tetrad formalism. In the weak-field approximation, near the string core, the space exhibits a conical singularity, with an attendant topological phase and distortion of the energy spectrum of a scalar particle determined by the global properties of the spacetime structure of the string loop. 
