title: Nature of excitations of the 5/2 fractional quantum Hall effect.
abstract: It is shown, with the help of exact diagonalization studies on systems with up to 16 electrons, in the presence of up to two delta function impurities, that the Pfaffian model is not accurate for the actual quasiholes and quasiparticles of the 5/2 fractional quantum Hall effect. Implications for non-Abelian statistics are discussed.
authors.affiliation: Department of Physics, 104 Davey Laboratory, The Pennsylvania State University, Pennsylvania 16802, USA.
authors.forename: Csaba
authors.initials: C
authors.lastname: Toke
authors.forename: Nicolas
authors.initials: N
authors.lastname: Regnault
authors.forename: Jainendra K
authors.initials: JK
authors.lastname: Jain