Parafermion statistics and quasihole excitations for the generalizations of the paired quantum Hall states

Citation
V. Gurarie et E. Rezayi, Parafermion statistics and quasihole excitations for the generalizations of the paired quantum Hall states, PHYS REV B, 61(8), 2000, pp. 5473-5482
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
10980121 → ACNP
Volume
61
Issue
8
Year of publication
2000
Pages
5473 - 5482
Database
ISI
SICI code
1098-0121(20000215)61:8<5473:PSAQEF>2.0.ZU;2-2
Abstract
We continue the program started by N. Read and one of us: and explain the s tatistics of the excitations for the generalizations of the paired states i n the quantum Hall effect in terms of the parafermion statistics.: We show that these excitations behave as combinations of bosons and parafermions. T hat generalizes the prior treatment of the paired (Moore-Read) state where the excitations behave as combinations of bosons and fermions. We explain w hat it means, from a quantum-mechanical point of view, for a particle to be a "parafermion" rather than a boson or a fermion and work through several explicit examples. The resulting multiplets coincide exactly with the angul ar momentum multiplets found numerically for the k+1-particle interaction H amiltonian on a sphere. We present proof that the wave functions found prev iously are indeed the correlation functions of the parafermion conformal fi eld theory. We also obtain the tunneling characteristics into the parafermi on edge, which can be used to distinguish the parafermion states from other known states at the same filling.