Experimental preparation of chiral spin liquids on quantum simulators

Develop and demonstrate experimentally feasible protocols to prepare SU(2)-symmetric spin-1/2 chiral spin liquid states on quantum simulators such as cold-atom platforms, achieving high-fidelity realization of the topological phase with chiral edge modes under realistic constraints.

Background

Chiral spin liquids are the spin analogs of fractional quantum Hall states and fractional Chern insulators, exhibiting topological order and chiral edge modes. Despite substantial theoretical progress, realizing these states in controllable quantum platforms remains challenging.

The paper proposes Floquet engineering on finite spin-1/2 lattices, starting from a Resonating Valence Bond state and applying dephased high-frequency drives to induce an effective chiral interaction. While numerics show promise on small clusters, a concrete, experimentally executable procedure that achieves high-fidelity state preparation on quantum simulators is still lacking.