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Surface Localization in Impurity Band with Random Displacements and Long-Range Interactions

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  • Victor Chulaevsky

Abstract

We study the random Schrödinger operators in a Euclidean space with the disorder generated by two complementary mechanisms: random substitution in a lower-dimensional layer and random displacements in the bulk, without additional assumptions regarding the reflection symmetry of the site potentials. The latter are assumed to be bounded and have a power-law decay. Complementing earlier results obtained in the strong disorder regime, we establish spectral and strong dynamical localization in the impurity zone near the bottom of spectrum for arbitrarily weak amplitudes of the random displacements, provided the concentration of impurities is sufficiently small.

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  • Victor Chulaevsky, 2018. "Surface Localization in Impurity Band with Random Displacements and Long-Range Interactions," Advances in Mathematical Physics, Hindawi, vol. 2018, pages 1-10, April.
    • Handle: RePEc:hin:jnlamp:7192303
    DOI: 10.1155/2018/7192303
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