Second Generation of Moore-Read Quasiholes in a Composite Fermion Liquid

Details Second Generation of Moore-Read Quasiholes in a Composite Fermion Liquid Second Generation of Moore-Read Quasiholes in a Composite Fermion Liquid

2006-04-23

arxiv.org/abs/cond-mat/0604533v1

Phys. Rev. B 74, 035315 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages

Scientific paper

10.1103/PhysRevB.74.035315

Two- and three-body correlations of incompressible quantum liquids are studied numerically. Pairing of composite fermions (CFs) in the 1/3-filled second CF Landau level is found at nu_e=4/11. It is explained by reduced short-range repulsion due to ring-like single-particle charge distribution. Although Moore-Read state of CFs is unstable in the 1/2-filled second CF level, condensation of its quasiholes is a possible origin of incompressibility at nu_e=4/11. Electron pairing occurs at nu_e=7/3 and 13/3, but with different pair-pair correlations. Signatures of triplets are found at higher fillings.

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