Exciton Transport in a Bilayer Quantum Hall Superfluid
arXiv:1209.6095 · doi:10.1088/1742-6596/456/1/012009
Abstract
Bilayer quantum Hall systems at ν=1 support an excitonic ground state. In addition to the usual charged quasiparticles, this system possesses a condensate degree of freedom: exciton transport. Detection of this neutral transport mode is facilitated by the use of the Corbino multiply-connected geometry in which charge transport is suppressed. We here summarize our recent experiments on Corbino devices which directly demonstrate exciton transport across the bulk of the incompressible ν=1 quantum Hall state.
5 pages, 2 figures. Contribution to the Proceedings of the 20th International Conference on High Magnetic Fields in Semiconductor Physics, Chamonix, 2012