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| Field theoretic description of the abelian and non-abelian Josephson effect: The role of pseudo-Goldstone Bosons |
| 2007-08-15
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Speaker : Prof. M.B. Paranjape Groupe de physique des particules, Département de physique, Université de Montréal
Date : 2007-08-15 15:30
Venue :
Conference Hall 322, ITP/理论物理所322报告厅
Abstract : 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. #@
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