Anderson localization of Bogoliubov excitations on quasi-1D strips

Published 30 Jan 2015 in cond-mat.quant-gas | (1501.07811v1)

Abstract: Anderson localization of Bogoliubov excitations is studied for disordered lattice Bose gases in planar quasi-one-dimensional geometries. The inverse localization length is computed as function of energy by a numerical transfer-matrix scheme, for strips of different widths. These results are described accurately by analytical formulas based on a weak-disorder expansion of backscattering mean free paths.

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