Paired state in an integrable spin-1 boson model

Details Paired state in an integrable spin-1 boson model Paired state in an integrable spin-1 boson model

2006-10-16

arxiv.org/abs/cond-mat/0610435v2

Europhys. Lett. 79, 30005 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 1 figure, Revised version

Scientific paper

10.1209/0295-5075/79/30005

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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