Spinor bosonic atoms in optical lattices: symmetry breaking and fractionalization.
نویسندگان
چکیده
We study superfluid and Mott insulator phases of cold spin-1 Bose atoms with antiferromagnetic interactions in an optical lattice, including a usual polar condensate phase, a condensate of singlet pairs, a crystal spin nematic phase, and a spin singlet crystal phase. We suggest a possibility of exotic fractionalized phases of spinor Bose-Einstein condensates and discuss them in the language of Z2 lattice gauge theory.
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عنوان ژورنال:
- Physical review letters
دوره 88 16 شماره
صفحات -
تاریخ انتشار 2002