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Zoekopdracht: journal id: "physicalxreviewxb"

AuteursE. Ardonne, F.J.M. van Lankvelt, A. Ludwig, K. Schoutens
TitelSeparation of spin and charge in paired spin-singlet quantum Hall states
TijdschriftPhysical Review B
Jaargang65
Jaar2002
Nummer4
Pagina's041305(R)-
ISSN1098-0121
FaculteitFaculteit der Natuurwetenschappen, Wiskunde en Informatica
Instituut/afd.FNWI: Institute for Theoretical Physics (ITF)
TrefwoordenHall-effect
SamenvattingWe propose a series of paired spin-singlet quantum Hall states, which exhibit a separation of spin and charge degrees of freedom. The fundamental excitations over these states, which have filling fraction $\nu=\frac{2}{2m+1}$ with $m$ an odd integer, are spinons (spin-$\frac{1}{2}$ and charge zero) or fractional holons (charge $\pm \frac{1}{2m+1}$ and spin zero). The braid statistics of these excitations are non-abelian. The mechanism for the separation of spin and charge in these states is topological: spin and charge excitations are liberated by binding to a vortex in a $p$-wave pairing condensate. We briefly discuss related, abelian spin-singlet states and possible transitions.
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