Dissipation and tunneling in quantum Hall bilayers

We discuss the interplay between transport and intrinsic dissipation in quantum Hall bilayers, within the framework of a simple thought experiment. We compute, for the first time, quantum corrections to the semiclassical dynamics of this system. This allows us to reinterpret tunneling measurements o...

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Bibliographic Details
Published in:Physical review letters 2004-09, Vol.93 (12), p.126803.1-126803.4, Article 126803
Main Authors: JACK, Robert L, LEE, Derek K. K, COOPER, Nigel R
Format: Article
Language:English
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Summary:We discuss the interplay between transport and intrinsic dissipation in quantum Hall bilayers, within the framework of a simple thought experiment. We compute, for the first time, quantum corrections to the semiclassical dynamics of this system. This allows us to reinterpret tunneling measurements on these systems. We find a strong peak in the zero-temperature tunneling current that arises from the decay of Josephson-like oscillations into incoherent charge fluctuations. In the presence of an in-plane field, resonances in the tunneling current develop an asymmetric line shape.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.93.126803