Cutoff Phenomenon for the Glauber-Misanthrope process in a perturbative regime

We investigate the Glauber–Misanthrope process, obtained by superposing a Misanthrope dynamics with finite site capacity and a Glauber dynamics which creates or annihilates particles one at a time at each site. In a perturbative regime around the diffusively scaled partial exclusion process, we prove the cutoff phenomenon and identify the limiting mixing time. Our approach relies on the information percolation framework developed by Lubetzky and Sly and extended by Tran, which we adapt to accommodate multiple occupancy per site and account for the two distinct correlation mechanisms generated by the Misanthrope and Glauber dynamics. Our lower bound on the mixing time holds under assumptions more general than those required for the matching upper bound.