Phase diagram and symmetry breaking of an SU(4) spin-orbital chain in a generalized external field

@inproceedings{Gu2004PhaseDA,
  title={Phase diagram and symmetry breaking of an SU(4) spin-orbital chain in a generalized external field},
  author={Shi-jian Gu and You-quan Li and H Zhou},
  year={2004}
}
The ground-state phases of a one-dimensional SU(4) spin-orbital Hamiltonian in a generalized external field are studied on the basis of the Bethe-ansatz solution. Introducing three Lande g factors for spin, orbital, and their products in the SU(4) Zeeman term, we systematically discuss various symmetry breakings. The magnetization versus external field is evaluated by solving the Bethe-ansatz equations numerically. The phase diagrams corresponding to distinct residual symmetries are given by… CONTINUE READING

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