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arXiv · 1105.4886

Tunable anisotropic magnetism in trapped two-component Bose gases

Yongqiang Li·M. Reza Bakhtiari·Liang He·Walter Hofstetter
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Abstract

We theoretically address magnetic ordering at zero and finite temperature in both homogeneous and trapped Bose-Bose mixtures in optical lattices. By using Bosonic Dynamical Mean-Field Theory, we obtain the phase diagram of the homogeneous two-component Bose-Hubbard model in a three-dimensional (3D) cubic lattice, which features competing magnetic order of XY-ferromagnetic and anti-ferromagnetic type in addition to the Mott and superfluid states. We show that these magnetic phases persist also in the presence of a harmonic trap.

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Yongqiang Li, M. Reza Bakhtiari, Liang He, Walter Hofstetter. 2011-05-24. Tunable anisotropic magnetism in trapped two-component Bose gases. https://doi.org/10.1103/physrevb.84.144411

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