Two-dimensional gapless spin liquids in frustrated SU(N) quantum magnets
Strongly Correlated Electrons
2009-11-10 v2
Abstract
A class of the symmetrically frustrated SU(N) models is constructed for quantum magnets based on the generators of SU(N) group. The total Hamiltonian lacks SU(N) symmtry. A mean field theory in the quasi-particle representation is developed for spin liquid states. Numerical solutions in two dimension indicate that the ground states are gapless and the quasi-particles are Dirac particles. The mechanism may be helpful in exploring the spin liquid phases in the spin-1 bilinear-biquadratic model and the spin-orbital model in higher dimensions.
Keywords
Cite
@article{arxiv.cond-mat/0410536,
title = {Two-dimensional gapless spin liquids in frustrated SU(N) quantum magnets},
author = {Peng Li and Shun-Qing Shen},
journal= {arXiv preprint arXiv:cond-mat/0410536},
year = {2009}
}
Comments
9 pages, 3 figures, to appear in New Journal of Physics