Probing spin dynamics from the Mott insulating to the superfluid regime in a dipolar lattice gas

Abstract : We analyze the spin dynamics of an out-of-equilibrium large spin dipolar atomic Bose gas in an optical lattice. We observe a smooth crossover from a complex oscillatory behavior to an exponen- tial behavior throughout the Mott to superfluid transition. While both of these regimes are well described by our theoretical models, we provide data in the intermediate regime where dipolar inter- actions, contact interactions, and super-exchange mechanisms compete. In this strongly correlated regime, spin dynamics and transport are coupled, which challenges theoretical models for quantum magnetism.
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Contributor : Olivier Gorceix <>
Submitted on : Thursday, July 16, 2015 - 1:45:50 PM
Last modification on : Thursday, February 7, 2019 - 5:48:39 PM

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A. de Paz, P. Pedri, A. Sharma, M. Efremov, B. Naylor, et al.. Probing spin dynamics from the Mott insulating to the superfluid regime in a dipolar lattice gas. Physical Review A, American Physical Society, 2016, 93, pp.021603. ⟨10.1103/PhysRevA.93.021603⟩. ⟨hal-01177003⟩

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