Physics

Observation of reentrant metal-insulator transition in a random-dimer disordered SSH lattice

Z. Xu, J. Gao, et al.

Discover groundbreaking insights into reentrant localization transitions in photonic SSH lattices with random-dimer disorder! This pioneering research by Ze-Sheng Xu, Jun Gao, Adrian Iovan, Ivan M. Khaymovich, Val Zwiller, and Ali W. Elshaari uncovers how certain eigenstates can exhibit extended behavior post an initial localization transition, enriching our understanding of transport in disordered media.

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Abstract

This paper presents the first experimental observation of a reentrant localization transition in a photonic SSH lattice with random-dimer disorder. By adjusting synthetic potentials, the researchers observed that certain eigenstates exhibited extended behavior following an initial localization transition as disorder increased. This reentrant phenomenon was verified using the normalized participation ratio, enriching the understanding of transport in disordered media and highlighting the potential of integrated photonics for simulating complex condensed matter physics.

Publisher

npj Nanophotonics

Published On

Jun 03, 2024

Authors

Ze-Sheng Xu, Jun Gao, Adrian Iovan, Ivan M. Khaymovich, Val Zwiller, Ali W. Elshaari

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