Skip to content

Edge Modes in the Hierarchical Fractional Quantum Hall Liquids with Coulomb Interaction

Takao Morinari, Naoto Nagaosa

cond-matarXiv:cond-mat/9606010

Abstract

Edge modes are studied for the hierarchical fractional quantum Hall liquids (FQHL) by treating the edge and bulk in a unified fashion. Within the RPA treatment of the composite boson effective theory with Coulomb interaction, one edge magneto-plasmon is shown to be the eigen-mode of the system. This mode decays algebraically perpendicular to the edge. All the other modes decay faster than power-law, and correspond to the neutral modes. However these neutral modes generally couple with the electromagnetic field within the magnetic length from the edge. The time-of-flight experiment in the ν=2/3 FQHL is discussed in terms of these results.

Create a lesson