Field theoretic description of the Abelian and non-Abelian Josephson effect.
We formulate the Josephson effect in a field theoretic language which affords a straightforward generalization to the non-Abelian case. Our formalism interprets Josephson tunneling as the excitation of pseudo Goldstone bosons. We demonstrate the formalism through the consideration of a single junction separating two regions with a purely non-Abelian order parameter and a sandwich of three regions where the central region is in a distinct phase. Applications to various non-Abelian symmetry breaking systems in particle and condensed matter physics are given.
Department of Physics, University of Cincinnati, P.O. Box 210011, Cincinnati, Ohio 45221-0011, USA.
F Paul
FP
Esposito
L-P
LP
Guay
R B
RB
MacKenzie
M B
MB
Paranjape
L C R
LC
Wijewardhana