title: Is there a dc Josephson effect in bilayer quantum Hall systems?
abstract: We argue on the basis of phenomenological and microscopic considerations that there is no dc 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.
authors.affiliation: Department of Physics, Indiana University, Bloomington, Indiana 47405, USA.
authors.forename: Y N
authors.initials: YN
authors.lastname: Joglekar
authors.forename: A H
authors.initials: AH
authors.lastname: MacDonald