Delocalization in coupled one-dimensional chains
P. W. Brouwer, C. Mudry, B. D. Simons, A. Altland
Abstract
A weakly disordered quasi-one-dimensional tight-binding hopping model with N rows is considered. The probability distribution of the Landauer conductance is calculated exactly in the middle of the band, ε=0, and it is shown that a delocalization transition at this energy takes place if and only if N is odd. This even-odd effect is explained by level repulsion of the transmission eigenvalues.
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