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

de Paz, A, Pedri, P, Sharma, A, Efremov, M, Naylor, B, Gorceix, O, Maréchal, E, Vernac, L and Laburthe-Tolra, B (2016) Probing spin dynamics from the Mott insulating to the superfluid regime in a dipolar lattice gas. Physical Review A, 93 (2). ISSN 2469-9926

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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 exponential 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 interactions, contact interactions, and superexchange mechanisms compete. In this strongly correlated regime, spin dynamics and transport are coupled, which challenges theoretical models for quantum magnetism.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Billy Wichaidit
Date Deposited: 12 Feb 2018 10:46
Last Modified: 12 Feb 2018 10:46
URI: http://sro.sussex.ac.uk/id/eprint/73493

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