title: Reconstruction of fractional quantum Hall edges.
abstract: We study the interplay of electron-electron interaction, confining potential and effects of finite temperature at the edge of a quantum Hall liquid. Our exact diagonalization calculation indicates that edge reconstruction occurs in the fractional quantum Hall regime for a variety of confining potential, including ones that correspond to a "sharp" edge. Our finite temperature Hartree-Fock calculation for integer quantum Hall edges indicates that reconstruction is suppressed above a certain temperature. We discuss the implication of our results on recent edge tunneling and microwave absorption experiments.
authors.affiliation: National High Magnetic Field Laboratory and Department of Physics, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Xin
authors.initials: X
authors.lastname: Wan
authors.forename: Kun
authors.initials: K
authors.lastname: Yang
authors.forename: E H
authors.initials: EH
authors.lastname: Rezayi