Delocalization induced by low-frequency driving in disordered superlattices

Abstract

We study the localization properties of disordered semiconductor superlattices driven by ac-fields. The localization length of the electrons in the superlattice increases when the frequency of the driving field is smaller than the miniband width. We show that there is an optimal value of the amplitude of the driving field for which the localization length of the system is maximal. This maximum localization length increases with the inverse of the driving frequency.

5 pages, 4 figures

References in corpus (7)

• Driven quantum transport on the nanoscale
• Photon-assisted transport in semiconductor nanostructures
• Floquet scattering theory of quantum pumps
• Localization Effects in ac-driven Tight-Binding Lattices
• ac-Field-Controlled Anderson Localization in Disordered Semiconductor Superlattices
• Atom cooling and trapping by disorder
• Quantum Dynamics of a Particle with a Spin-dependent Velocity

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