Influence of different disorder types on Aharonov-Bohm caging in the diamond chain
Optics
2020-03-04 v1 Disordered Systems and Neural Networks
Abstract
The linear diamond chain with fine-tuned effective magnetic flux has a completely flat energy spectrum and compactly-localized eigenmodes, forming an Aharonov-Bohm cage. We study numerically how this localization is affected by different types of disorder (static and time-evolving) relevant to recent realizations of Aharonov-Bohm cages in periodically-modulated optical waveguide arrays. We demonstrate robustness of localization under static and periodically-evolving disorder, while in contrast non-quenched (time-dependent) disorder leads to wavepacket spreading and delocalization.
Keywords
Cite
@article{arxiv.1909.07055,
title = {Influence of different disorder types on Aharonov-Bohm caging in the diamond chain},
author = {Goran Gligorić and Daniel Leykam and Aleksandra Maluckov},
journal= {arXiv preprint arXiv:1909.07055},
year = {2020}
}
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13 figures