Localized eigenstates of one-dimensional tight-binding systems: A new algorithm
- 15 June 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 35 (17), 9045-9055
- https://doi.org/10.1103/physrevb.35.9045
Abstract
We present a new numerical algorithm capable of determining the localized eigenstates and their energies for the general class of one-dimensional nearest-neighbor tight-binding models to arbitrarily high accuracy. This algorithm completely overcomes the numerical instability originating in a growing solution which inevitably accompanies a localized solution. It is also free of the ambiguity of the Economou-Cohen method.Keywords
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