Pairing of Composite Fermions, Laughlin Correlations, and the Fractional Quantum Hall Hierarchy

Details Pairing of Composite Fermions, Laughlin Correlations, and the Fractional Quantum Hall Hierarchy Pairing of Composite Fermions, Laughlin Correlations, and the Fractional Quantum Hall Hierarchy

2003-04-05

arxiv.org/abs/cond-mat/0304130v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

A novel hierarchy of fractional quantum Hall (FQH) states in the lowest Landau level (LL) is proposed to explain recently observed FQH fractions such as nu=5/13, 3/8, or 4/11. Based on the analysis of their interaction pseudopotentials, it is argued that the Laughlin quasiparticles (particles/holes in a partially filled composite fermion LL) form pairs. These pairs are proposed to have Laughlin correlations with one another and to form condensed states at a sequence of fractions which includes all new fractions observed in experiment.

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