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Paired state in an integrable spin-1 boson model

Junpeng Cao·Yuzhu Jiang·Yupeng Wang
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Abstract

An exactly solvable model describing the low density limit of the spin-1 bosons in a one-dimensional optical lattice is proposed. The exact Bethe ansatz solution shows that the low energy physics of this system is described by a quantum liquid of spin singlet bound pairs. Motivated by the exact results, a mean-field approach to the corresponding three-dimensional system is carried out. Condensation of singlet pairs and coexistence with ordinary Bose-Einstein condensation are predicted.

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Junpeng Cao, Yuzhu Jiang, Yupeng Wang. 2007-11-28. Paired state in an integrable spin-1 boson model. https://doi.org/10.1209/0295-5075%2F79%2F30005

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