Journal
COMMUNICATIONS IN MATHEMATICAL PHYSICS
Volume 259, Issue 1, Pages 185-221Publisher
SPRINGER
DOI: 10.1007/s00220-005-1369-7
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We consider the edge and bulk conductances for 2D quantum Hall systems in which the Fermi energy falls in a band where bulk states are localized. We show that the resulting quantities are equal, when appropriately defined. An appropriate definition of the edge conductance may be obtained through a suitable time averaging procedure or by including a contribution from states in the localized band. In a further result on the Harper Hamiltonian, we show that this contribution is essential. In an appendix we establish quantized plateaus for the conductance of systems which need not be translation ergodic.
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