No End of Tricks: Electrons in the Fractional Quantum Hall Regime

TL;DR

This paper reviews recent advances in understanding the fractional quantum Hall regime, where electrons exhibit non-Fermi-liquid behavior due to strong magnetic fields and electron-electron interactions in two-dimensional systems.

Contribution

It provides a survey of recent progress in the physics of the fractional quantum Hall regime, highlighting new insights into electron interactions and non-Fermi-liquid properties.

Findings

Electrons are confined to the lowest Landau level under strong magnetic fields.

Physical properties are dominated by electron-electron interactions.

The fractional quantum Hall regime exhibits surprising non-Fermi-liquid behavior.

Abstract

In the strong magnetic field fractional quantum Hall regime, electrons in a two-dimensional electron system are confined to their lowest Landau level. Because of the macroscopic Landau level degeneracy nearly all physical properties at low energies and temperatures are then entirely determined by electron-electron interactions. The properties of these non-Fermi-liquid electronic systems continue to surprise. In this article we briefly survey some recent advances in the physics of the fractional Hall regime.