New Class of Non-Abelian Spin-Singlet Quantum Hall States

Details New Class of Non-Abelian Spin-Singlet Quantum Hall States New Class of Non-Abelian Spin-Singlet Quantum Hall States

1998-11-25

arxiv.org/abs/cond-mat/9811352v2

Phys. Rev. Lett. 82, 5096 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

LaTeX, 4 pages, no figures, final version, Phys. Rev. Lett, in press

Scientific paper

10.1103/PhysRevLett.82.5096

We present a new class of non-abelian spin-singlet quantum Hall states, generalizing Halperin's abelian spin-singlet states and the Read-Rezayi non-abelian quantum Hall states for spin-polarized electrons. We label the states by (k,M) with M odd (even) for fermionic (bosonic) states, and find a filling fraction $\nu=2k/(2kM+3)$. The states with M=0 are bosonic spin-singlet states characterized by an SU(3)_k symmetry. We explain how an effective Landau-Ginzburg theory for the SU(3)_2 state can be constructed. In general, the quasi-particles over these new quantum Hall states carry spin, fractional charge and non-abelian quantum statistics.

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