Localization length versus level repulsion in 1-D driven disordered quantum wires
arXiv:1711.00685 · doi:10.1103/PhysRevB.96.174202
Abstract
We study the level repulsion and its relationship with the localization length in a disordered one-dimensional quantum wire excited with monochromatic linearly polarized light and described by the Anderson-Floquet model. In the high frequency regime, the linear scaling between the localization length divided by the length of the system and the spectral repulsion is the same as in the one-dimensional Anderson model without driving, although both quantities depend on the parameters of the external field. In the low frequency regime the level repulsion depends mainly on the value of the amplitude of the field and the proportionality between level repulsion and localization length is lost.
10 pages, 11 figures
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