Global Strings and the Aharonov-Bohm Effect
A. C. Davis, A. P. Martin
Abstract
When a fermion interacts with a global vortex or cosmic string a solenoidal "gauge" field is induced. This results in a non-trivial scattering cross-section. For scalars and non-relativistic fermions the cross-section is similar to that of Aharonov and Bohm, but with corrections. A cosmological example is compared to one in liquid He3-A and important differences are discovered.
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