Condensed Matter Physics Seminar

2 p.m., Thursday, February 16, 2006
Room 1201, Physics Building

 Charge Phase Duality in a Fluctuating Electromagnetic Environment

David Haviland

(Royal Institute of Technology, Albanova University Center, Sweden)

Abstract:  Circuits containing Josephson junctions are often understood in terms of a semi-classical, non-linear dynamics the Josephson phase.  A reasonably complete understanding of the circuit electrodynamics has been achieved in many regimes, with good correspondence between theory and experiment provided that the coupling to the dissipative electrodynamics of the junction environment is weak.  This talk will report on our investigations of the strong coupling regime, where a semi-classical picture based on phase dynamics is not appropriate.  Rather, we explain this strong coupling regime using a semi-classical change dynamics which is exactly dual the phase dynamics.
Host:  Wellstood
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