Dissipative dynamics of planar d-wave Josephson junctions.
We study quantum dynamics of and phase transitions in a Josephson junction between two planar d-wave superconductors where the processes of both quasiparticle and Cooper pair tunneling give rise to nonlocal dissipative terms in the effective action. By combining a perturbative weak coupling analysis in the charge representation with a variational approach in the phase representation at strong coupling, we ascertain a layout of the junction's phase diagram and discuss the corresponding behaviors.
Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
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Khveshchenko