Geometrically induced complex tunnelings for ultracold atoms carrying orbital angular momentum
Geometrically induced complex tunnelings for ultracold atoms carrying orbital angular momentum
We investigate the dynamics of angular momentum states for a single ultracold atom trapped in two-dimensional systems of sided coupled ring potentials. The symmetries of the system show that tunneling amplitudes between different ring states with variation of the winding number are complex. In particular, we demonstrate that in a …