Symmetry breaking in low-dimensional SU(N) antiferromagnets

Details Symmetry breaking in low-dimensional SU(N) antiferromagnets Symmetry breaking in low-dimensional SU(N) antiferromagnets

2008-08-14

arxiv.org/abs/0808.1993v2

Phys. Rev. B 78, 144428 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 2 figures; added references, corrected fig.2; the final version to appear in PRB

Scientific paper

10.1103/PhysRevB.78.144428

Consequences of explicit symmetry breaking in a physically motivated model of SU(N) antiferromagnet in spatial dimensions one and two are studied. It is shown that the case N=3, which can be realized in spin-1 cold atom systems, displays special properties distinctly different from those for N>=4. Qualitative form of the phase diagram depending on the model parameters is given.

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