2001/02/28 by E. Ardonne, Eddy Ardonne, F. J. M. van Lankvelt +4 · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.65.041305
published as Phys. Rev. B 65, 041305 (2002) · 4 pages, uses revtex4
openalex publication_date 2002/01/02 · arxiv created 2002/01/14 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We 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 \ensuremathν=2/(2m+1) with m an odd integer, are spinons (spin-(1)/(2) and charge zero) or fractional holons (charge \ifmmode±\else\textpm\fi1/(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.