Journal of Statistical Physics

, Volume 46, Issue 5–6, pp 861–909

Anderson localization for one-dimensional difference Schrödinger operator with quasiperiodic potential

  • Ya. G. Sinai
Articles

Abstract

The Schrödinger difference operator considered here has the form
$$(H_\varepsilon (\alpha )\psi )(n) = - (\psi (n + 1) + \psi (n - 1)) + V(n\omega + \alpha )\psi (n)$$
whereV is aC2-periodic Morse function taking each value at not more than two points. It is shown that for sufficiently smallɛ the operatorHɛ(α) has for a.e.α a pure point spectrum. The corresponding eigenfunctions decay exponentially outside a finite set. The integrated density of states is an incomplete devil's staircase with infinitely many flat pieces.

Key words

Schrödinger operator eigenfunction eigenvalue Green's function continued fraction 

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Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • Ya. G. Sinai
    • 1
  1. 1.L. D. Landau Institute of Theoretical PhysicsAcademy of Sciences of the USSRMoscowUSSR

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