Correlations of the local density of states in quasi-one-dimensional wires
We report a calculation of the correlation function of the local density of states in a disordered quasi-one-dimensional wire in the unitary symmetry class at a small energy difference. Using an expression from the supersymmetric sigma model, we obtain the full dependence of the two-point correlation function on the distance between the points. In the limit of zero energy difference, our calculation reproduces the statistics of a single localized wave function. At logarithmically large distances of the order of the Mott scale, we obtain a reentrant behavior similar to that in strictly one-dimensional chains.
Keywords: electronic density of states ; localised states ; wave functions ; Non-Crystalline Systems ; Anderson Localization ; Disordered-Systems ; Conductance Fluctuations ; Fourier-Analysis ; Eigenfunctions ; Supersymmetry ; Statistics
Record created on 2010-11-30, modified on 2016-08-09