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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