Gil De Paz, ArmandoSharma, A.Chotia, A.Marechal, E.Huckans, J. H.Pedri, P.Santos, L.Gorceix, O.Vernac, L.Laburthe-Tolra, B.2023-06-192023-06-192013-10-300031-900710.1103/PhysRevLett.111.185305https://hdl.handle.net/20.500.14352/35016© 2013 American Physical Society. We acknowledge financial support from Conseil Regional d'Ile-de-France and from Ministere de l'Enseignement Superieur et de la Recherche within IFRAF and CPER. L. S. acknowledges support from the Deutsche Forschungsgemeinschaft (SA1031/6) and the Cluster of Excellence QUEST.We report on the realization of quantum magnetism using a degenerate dipolar gas in an optical lattice. Our system implements a lattice model resembling the celebrated t-J model. It is characterized by a nonequilibrium spinor dynamics resulting from intersite Heisenberg-like spin-spin interactions provided by nonlocal dipole-dipole interactions. Moreover, due to its large spin, our chromium lattice gases constitute an excellent environment for the study of quantum magnetism of high-spin systems, as illustrated by the complex spin dynamics observed for doubly occupied sites.engjournal articlehttp://dx.doi.org/10.1103/PhysRevLett.111.185305http://journals.aps.org/open access52Polar-moleculesOptical latticeUltracold atomsDynamicsAstrofísicaAstronomía (Física)