Phase measurements in open and closed Aharonov-Bohm interferometers

TL;DR

This paper reviews theoretical insights into phase measurements in mesoscopic Aharonov-Bohm interferometers, covering both closed and open setups, including new results for the Kondo regime and analysis of experimental data.

Contribution

It provides a comprehensive review of conductance theories in Aharonov-Bohm interferometers, introducing new findings for the Kondo regime and evaluating experimental data consistency.

Findings

Theoretical conductance models for closed and open interferometers.

New results on the Kondo regime in phase measurements.

Analysis of experimental data consistency with two-slit interference.

Abstract

Mesoscopic Aharonov-Bohm interferometers have been used in attempts to measure the transmission phase of a quantum dot which is placed on one arm of the interferometer. Here we review theoretical results for the conductance through such interferometers, for both the closed (two-terminal) and open (multi-terminal) cases. In addition to earlier results for the Coulomb blockade regime, we present new results for the strongly correlated Kondo regime, and test the consistency of the two-slit analysis of some data from open interferometer experiments.