Dimer state of spin-1 Bosons in an optical lattice

Abstract

In this paper we consider spin-1 Bosons, such as ${}^{23}$Na, trapped in an optical lattice, in the regime of one particle per site. We argue that the ground state is expected to be the dimer phase in one, two, or three dimensions, thus realizing a state that has so far been studied only theoretically.

to appear in PRL

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• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Cold bosonic atoms in optical lattices
• Spinor Bose Condensates in Optical Traps
• Spinor Bosonic Atoms in Optical Lattices: Symmetry Breaking and Fractionalization

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