Quasiperiodic driving of Anderson localized waves in one dimension

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Title
Quasiperiodic driving of Anderson localized waves in one dimension
Author(s)
H. Hatami; C. Danieli; J.D. Bodyfelt; Sergej Flach
Publication Date
2016-06
Journal
PHYSICAL REVIEW E, v.93, no.6, pp.062205 -
Publisher
AMER PHYSICAL SOC
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. ©2016 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/2514
ISSN
2470-0045
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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