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Superfluid-Mott Insulator Transition of Spin-1 Bosons in an Optical Lattice

Shunji Tsuchiya·Susumu Kurihara·Takashi Kimura
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Abstract

We have studied superfluid-Mott insulating transition of spin-1 bosons interacting antiferromagnetically in an optical lattice. We have obtained the zero-temperature phase diagram by a mean-field approximation and have found that the superfluid phase is to be a polar state as a usual trapped spin-1 Bose gas. More interestingly, we have found that the Mott-insulating phase is strongly stabilized only when the number of atoms per site is even.

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Shunji Tsuchiya, Susumu Kurihara, Takashi Kimura. 2002-09-30. Superfluid-Mott Insulator Transition of Spin-1 Bosons in an Optical Lattice. https://doi.org/10.1103/physreva.70.043628

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