Nature of excitations of the 5/2 fractional quantum Hall effect

Nicolas Regnault (1)

1 LPA - Laboratoire Pierre Aigrain

We show, with the help of exact diagonalization studies on systems with up to sixteen electrons in the presence of up to two delta function impurities, that the Pfaffia n model is not accurate for the actual quasiholes and quasiparticles of the 5/2 fractional quantum Hall effect. We discuss implications for non-Abelian statistics.

Domaines: Autre [cond-mat.other]

Nicolas Regnault. Nature of excitations of the 5/2 fractional quantum Hall effect. APS March Meeting 2007, Mar 2007, Denver, United States. ⟨hal-00157108⟩