Influence of different disorder types on Aharonov-Bohm caging in the diamond chain

Goran Gligoric; Daniel Leykam; Aleksandra Maluckov

doi:10.1103/PhysRevA.101.023839

Influence of different disorder types on Aharonov-Bohm caging in the diamond chain

Goran Gligoric, Daniel Leykam Aleksandra Maluckov

Physical review. A, Vol.101(2), 023839

27/02/2020

: https://doi.org/10.1103/PhysRevA.101.023839

Optics

Physical Sciences

Physics

Physics, Atomic, Molecular & Chemical

Science & Technology

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 time-periodic disorder. In contrast, nonquenched (time-dependent) disorder leads to wave-packet spreading and delocalization.

: Influence of different disorder types on Aharonov-Bohm caging in the diamond chain
: Goran Gligoric - University of Belgrade
Daniel Leykam - Institute for Basic Science
Aleksandra Maluckov - University of Belgrade
: Physical review. A, Vol.101(2), 023839
: Amer Physical Soc
: 8
: III 45010 / Ministry of Education, Science, and Technological Development of the Republic of Serbia; Ministry of Education, Science & Technological Development, Serbia IBS-R024-Y1 / Institute for Basic Science in Korea
: 9911503909846
: SCI,MATH & Technology
: English
: Journal article