Coulomb blockade double-dot Aharonov-Bohm interferometer: harmonic decomposition of the interference pattern

TL;DR

This paper analyzes the interference pattern in a solid state double-dot Aharonov-Bohm interferometer, revealing unexpected effects due to Coulomb interactions and reflections, with implications for quantum measurement and electron loss.

Contribution

It introduces a harmonic decomposition approach to understand complex interference patterns influenced by Coulomb correlations and multiple reflections.

Findings

Uncovered unexpected interference effects.

Linked interference pattern features to which-path detection.

Discussed electron loss implications.

Abstract

For the solid state double-dot interferometer, the phase shifted interference pattern induced by the interplay of inter-dot Coulomb correlation and multiple reflections is analyzed by harmonic decomposition. Unexpected result is uncovered, and is discussed in connection with the which-path detection and electron loss.