Proposal for simulating quantum spin models with Dzyaloshinskii-Moriya interaction using Rydberg atoms, and construction of asymptotic quantum many-body scar states

We propose a method to realize tunable quantum spin models with Dzyaloshinskii-Moriya interaction (DMI) in Rydberg atom quantum simulators. Our scheme uses a two-photon Raman transition and transformation to the spin-rotating frame. We investigate the properties of the model including only the DMI and Zeeman energy, which can be experimentally realized in our scheme. We show that the model accommodates exact and asymptotic quantum many-body scars exhibiting nonergodic dynamics.