Topological Aharonov-Bohm suppression of optical tunneling in twisted nonlinear multicore fibers

Abstract

We show that the Aharonov-Bohm-like suppression of optical tunneling in twisted multicore fibers can persist even under highly nonlinear conditions. Our analysis indicates that the topological phase is robust and remains intact in the presence of nonlinearity. The energy exchange dynamics are analyzed theoretically via closed-form solutions in four-core ring systems. Effects arising from asymmetry are also investigated. A possible arrangement to experimentally observe this effect is suggested.