Nonequilibrium quantum magnetism in a dipolar lattice gas



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Gil de Paz, Armando and Sharma, A. and Chotia, A. and Marechal, E. and Huckans, J. H. and Pedri, P. and Santos, L. and Gorceix, O. and Vernac, L. and Laburthe-Tolra, B. (2013) Nonequilibrium quantum magnetism in a dipolar lattice gas. Physical review letters, 111 (18). ISSN 0031-9007

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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.

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© 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.

Uncontrolled Keywords:Polar-molecules; Optical lattice; Ultracold atoms; Dynamics
Subjects:Sciences > Physics > Astrophysics
Sciences > Physics > Astronomy
ID Code:35025
Deposited On:14 Jan 2016 18:54
Last Modified:10 Dec 2018 15:05

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