Your browser doesn't support javascript.
loading
Numerical calculation of the neutral fermion gap at the ν=5/2 fractional quantum Hall state.
Bonderson, Parsa; Feiguin, Adrian E; Nayak, Chetan.
Afiliación
  • Bonderson P; Microsoft Research, Station Q, Elings Hall, University of California, Santa Barbara, 93106, USA.
Phys Rev Lett ; 106(18): 186802, 2011 May 06.
Article en En | MEDLINE | ID: mdl-21635117
We present the first numerical computation of the neutral fermion gap, Δ(F), in the ν=5/2 quantum Hall state, which is analogous to the energy gap for a Bogoliubov-de Gennes quasiparticle in a superconductor. We find Δ(F)≈0.027e(2)/εℓ(0), comparable to the charge gap. We also deduce an effective Fermi velocity v(F) for neutral fermions from the low-energy spectra for odd numbers of electrons, and thereby obtain a correlation length ξ(F)=v(F)/Δ(F)≈1.3ℓ(0). We comment on implications for experiments, topological quantum information processing, and electronic mechanisms of superconductivity.
Buscar en Google
Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2011 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Buscar en Google
Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2011 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos