{ "id": "cond-mat/0609665", "version": "v2", "published": "2006-09-26T12:18:40.000Z", "updated": "2007-01-18T11:51:57.000Z", "title": "Edge Excitations and Non-Abelian Statistics in the Moore-Read State: A Numerical Study in the Presence of Coulomb Interaction and Edge Confinement", "authors": [ "Xin Wan", "Kun Yang", "E. H. Rezayi" ], "comment": "4 pages, 3 figures. New version shortened for PRL. Corrected typos", "journal": "Phys. Rev. Lett. 97, 256804 (2006)", "doi": "10.1103/PhysRevLett.97.256804", "categories": [ "cond-mat.mes-hall" ], "abstract": "We study the ground state and low-energy excitations of fractional quantum Hall systems on a disk at filling fraction $\\nu = 5/2$, with Coulomb interaction and background confining potential. We find the Moore-Read ground state is stable within a finite but narrow window in parameter space. The corresponding low-energy excitations contain a fermionic branch and a bosonic branch, with widely different velocities. A short-range repulsive potential can stabilize a charge $+e/4$ quasihole at the center, leading to a different edge excitation spectrum due to the change of boundary conditions for Majorana fermions, clearly indicating the non-Abelian nature of the quasihole.", "revisions": [ { "version": "v2", "updated": "2007-01-18T11:51:57.000Z" } ], "analyses": { "keywords": [ "coulomb interaction", "moore-read state", "non-abelian statistics", "edge confinement", "numerical study" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }