Is there a d.c. Josephson Effect in Bilayer Quantum Hall Systems?

Abstract

We argue on the basis of phenomenological and microscopic considerations that there is no d.c. Josephson effect in ordered bilayer quantum Hall systems, even at T=0. Instead the tunnel conductance is strongly enhanced, approaching a finite value proportional to the square of the order parameter as the interlayer tunneling amplitude vanishes.

5 pages, 2 figures

References in corpus (2)

• Observation of a Linearly Dispersing Collective Mode in a Quantum Hall Ferromagnet
• Microscopic Functional Integral Theory of Quantum Fluctuations in Double-Layer Quantum Hall Ferromagnets

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