
Physics 2001
Separation of spin and charge in paired spinsinglet quantum Hall statesDOI: 10.1103/PhysRevB.65.041305 Abstract: We propose a series of paired spinsinglet 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=2/(2m+1) with m an odd integer, are spinons (spin1/2 and charge zero) or fractional holons (charge +/ 1/(2m+1) and spin zero). The braid statistics of these excitations are nonabelian. 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 pwave pairing condensate. We briefly discuss related, abelian spinsinglet states and possible transitions.
