Quantum Hall States in rapidly rotating two-component bose gases

Shunsuke Furukawa, Masahito Ueda

研究成果: Article査読

30 被引用数 (Scopus)

抄録

We investigate strongly correlated phases of two-component (or pseudospin-1/2) Bose gases under rapid rotation through exact diagonalization on a torus geometry. In the case of pseudospin-independent contact interactions, we find the formation of gapped spin-singlet states at the filling factors ν=k/3+k/3 (k/3 filling for each component) with integer k. We present numerical evidences that the gapped state with k=2 is well described as a non-Abelian spin-singlet (NASS) state, in which excitations feature non-Abelian statistics. Furthermore, we find the phase transition from the product of composite fermion states to the NASS state by changing the ratio of the intercomponent-to-intracomponent interactions.

本文言語English
論文番号031604
ジャーナルPhysical Review A - Atomic, Molecular, and Optical Physics
86
3
DOI
出版ステータスPublished - 2012 9月 17
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学

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