Dissipation and tunneling in quantum Hall bilayers |
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Authors: | Jack Robert L Lee Derek K K Cooper Nigel R |
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Affiliation: | Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom. |
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Abstract: | 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. |
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