Tunable anisotropic magnetism in trapped two-component Bose gases

Details Tunable anisotropic magnetism in trapped two-component Bose gases Tunable anisotropic magnetism in trapped two-component Bose gases

2011-05-24

arxiv.org/abs/1105.4886v1

Phys. Rev. B 84, 144411 (2011)

Physics

Condensed Matter

Quantum Gases

10 pages, 13 figures

Scientific paper

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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