title: Quasiperiodic driving of Anderson localized waves in one dimension.
abstract: We consider a quantum particle in a one-dimensional disordered lattice with Anderson localization in the presence of multifrequency perturbations of the onsite energies. Using the Floquet representation, we transform the eigenvalue problem into a Wannier-Stark basis. Each frequency component contributes either to a single channel or a multichannel connectivity along the lattice, depending on the control parameters. The single-channel regime is essentially equivalent to the undriven case. The multichannel driving increases substantially the localization length for slow driving, showing two different scaling regimes of weak and strong driving, yet the localization length stays finite for a finite number of frequency components.
authors.affiliation: Center for Theoretical Physics of Complex Systems, Institute for Basic Science, Daejeon, Korea.
authors.forename: H
authors.initials: H
authors.lastname: Hatami
authors.affiliation: New Zealand Institute for Advanced Study, Centre for Theoretical Chemistry & Physics, Massey University, Auckland, New Zealand.
authors.forename: C
authors.initials: C
authors.lastname: Danieli
authors.affiliation: New Zealand Institute for Advanced Study, Centre for Theoretical Chemistry & Physics, Massey University, Auckland, New Zealand.
authors.forename: J D
authors.initials: JD
authors.lastname: Bodyfelt
authors.affiliation: Center for Theoretical Physics of Complex Systems, Institute for Basic Science, Daejeon, Korea.|New Zealand Institute for Advanced Study, Centre for Theoretical Chemistry & Physics, Massey University, Auckland, New Zealand.
authors.forename: S
authors.initials: S
authors.lastname: Flach