Pré-Publication, Document De Travail Année : 2003

On the singular spectrum for adiabatic quasi-periodic Schrödinger operators on the real line

Résumé

In this paper, we study spectral properties of a family of quasi-periodic Schrödinger operators on the real line in the adiabatic limit. We assume that the adiabatic iso-energetic curves are extended along the momentum direction. In the energy intervals where this happens, we obtain an asymptotic formula for the Lyapunov exponent, and show that the spectrum is purely singular.

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hal-00000328 , version 1 (25-04-2003)

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Alexander Fedotov, Frédéric Klopp. On the singular spectrum for adiabatic quasi-periodic Schrödinger operators on the real line. 2003. ⟨hal-00000328⟩
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