%0 Journal Article %T Spectral Dependence of the Degree of Localization in a 1D Disordered System with a Complex Structural Unit %A Gleb G. Kozlov %J Applied Mathematics %P 965-974 %@ 2152-7393 %D 2011 %I Scientific Research Publishing %R 10.4236/am.2011.28133 %X We analyze the spectral distribution of localisation in a 1D diagonally disordered chain of fragments each of which consist of <i>m</i> coupled two-level systems. The calculations performed by means of developed perturbation theory for joint statistics of advanced and retarded Green¡¯s functions. We show that this distribution is rather inhomogeneous and reveals spectral regions of weakly localized states with sharp peaks of the localization degree in the centers of these regions. %K Anderson Localization %K Spectral Distribution %K Green¡¯s Function %K 1D Disordered Chain %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=6963