  Laser-induced gauge fields in neutral atoms serve as a means of mimicking the
effects of a magnetic field, providing researchers with a platform to explore
behaviors analogous to those observed in condensed matter systems under real
magnetic fields. Here, we propose a method to generate chiral motion in atomic
excitations within the neutral atomic ground-state manifolds. This is achieved
through the application of polychromatic driving fields coupled to the
ground-Rydberg transition, along with unconventional Rydberg pumping. The
scheme offers the advantage of arbitrary adjustment of the effective magnetic
flux by setting the relative phases between different external laser fields.
Additionally, the effective interaction strength between the atomic ground
states can be maintained at 10 kHz, surpassing the capabilities of the previous
approach utilizing Floquet modulation. Notably, the proposed method can be
readily extended to implement a hexagonal neutral atom lattice, serving as the
fundamental unit in realizing the Haldane model.
