Multiflux Aharonov-Bohm caging with tunable couplings
Phys. Rev. A 114, 042453 – Published 23 October, 2026
DOI: https://doi.org/10.1103/9c1k-8ynh
Abstract
Aharonov-Bohm (AB) caging is the complete wave-function-localization effect in translationally invariant lattices induced by destructive phase interference. These phases originate from gauge fields such as penetrated magnetic fields, which are directly related to several novel topological quantum states of matter. Recently, this effect has shown significant potential for applications in quantum simulation and topological quantum computation. Here, we propose a scalable protocol to derive universal conditions for AB caging with multiflux. The numerical simulations validate the theoretical predictions by directly observing AB caging phenomena. We also investigate the breaking of the caging effect with on-site detuning, decoherence, and non-Hermitian transitions. Our protocol provides an alternative approach for advancing quantum simulation of exotic states of matter.
