Phase-Coherent Transport through a Mesoscopic System: A New Probe of Non-Fermi-Liquid Behavior

TL;DR

This paper proposes a new chiral interferometer to measure transmission phase in mesoscopic systems under strong magnetic fields, revealing non-Fermi-liquid behavior in the fractional quantum Hall regime through advanced theoretical analysis.

Contribution

It introduces a novel interferometric method for phase measurement and predicts non-Fermi-liquid phenomena in the FQHE regime using bosonization and perturbation techniques.

Findings

Predicted non-Fermi-liquid behavior in FQHE regime.

Proposed a direct phase measurement method for mesoscopic transport.

Distinguished Luttinger liquids from Fermi liquids experimentally.

Abstract

A novel chiral interferometer is proposed that allows for a direct measurement of the phase of the transmission coefficient for transport through a variety of mesoscopic structures in a strong magnetic field. The effects of electron-electron interaction on this phase is investigated with the use of finite-size bosonization techniques combined with perturbation theory resummation. New non-Fermi-liquid phenomena are predicted in the FQHE regime that may be used to distinguish experimentally between Luttinger and Fermi liquids.