Proposal for realizing quantum spin models with Dzyaloshinskii-Moriya interaction using Rydberg atoms

Abstract

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 quantum dynamics of the model including only the DMI and Zeeman energy, which can be experimentally realized in our scheme. Unlike its classical counterpart, the magnetization curve in this model is continuous under the open boundary condition. We also show that the model accommodates quantum many-body scars exhibiting nonergodic dynamics.Comment: 7 pages and 4 figures (main) and 13 pages, 8 figures, and 1 table (supple