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Localized Quantum Walks in Quasiperiodic Photonics Lattices

Dan Trung Nguyen, Daniel A. Nolan, Nicholas F. Borrelli, David A. S. Loeber

Published Jan 1, 2022• 0 citations
Publisher

Abstract

Localized quantum walks are theoretically investigated in new class of quasiperiodic photonics lattices. Theoretical results have been validated quantitatively by experiments of quantum walks in Fibonacci multicore fibers.
DOI
10.1364/quantum.2022.qw4b.4

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New quasi-periodic arrays of waveguides (AWs) constructed with Fibonacci sequences are proposed to realize localized quantum walks (LQWs). The proposed Fibonacci arrays of waveguides (FAWs) are simple and straightforward to make, but have a rich set of properties that are of potential use for applications in quantum communication. Our simulations show that, in contrast with randomly disordered AWs, LQWs in FAWs are highly controllable due to the deterministic disorder nature of quasi-periodic systems. Furthermore, unique LQWs with symmetrical probability distribution can be conveniently realized in the FAWs.