@article{12078, author = {Anjun Chu and Johannes Will and Jan Arlt and Carsten Klempt and Ana Maria Rey}, title = {Simulation of XXZ Spin Models using Sideband Transitions in Trapped Bosonic Gases}, abstract = {We theoretically propose and experimentally demonstrate the use of motional sidebands in a trapped ensemble of 87Rb atoms to engineer tunable long-range XXZ spin models. We benchmark our simulator by probing a ferromagnetic to paramagnetic dynamical phase transition in the so called Lipkin-Meshkov-Glick (LMG) model, a collective XXZ model plus additional transverse and longitudinal fields, via Rabi spectroscopy. We experimentally reconstruct the boundary between the dynamical phases, which is in good agreement with mean-field theoretical predictions. In addition we analyze the achievable spin squeezing in our XXZ simulator theoretically, opening the possibilities of using motional sidebands as a tool to push the frontiers of metrology via quantum entanglement.}, year = {2020}, journal = {Physical Review Letters}, volume = {125}, chapter = {240504}, pages = {240504}, month = {2020-12}, doi = {10.1103/PhysRevLett.125.240504}, }