Atomtronic multiterminal Aharonov-Bohm interferometer

We study a multi-functional device for cold atoms consisting of three-terminal ring circuit pierced by synthetic magnetic flux, where the can be continuous or discretized. The flux controls atomic current through via Aharonov-Bohm effect. Our shows flux-induced transition reflections from an Andreev-like negative density to positive density. Further, direct into specific output ports, realizing flexible non-reciprocal switch connect multiple systems sense rotations. By changing linearly in time, we convert constant matter wave currents AC modulated current. This effect used realize frequency generator and fundamental problems related experimentally demonstrate Bose-Einstein condensation light-shaped optical potential ring. work opens up possibility novel atomtronic devices practical applications quantum technologies.