Two-particle Aharonov-Bohm effect and Entanglement in the electronic Hanbury Brown Twiss setup

TL;DR

This paper investigates two-particle Aharonov-Bohm oscillations and entanglement in a mesoscopic electronic setup, revealing exchange effects induce oscillations without single-particle interference, and demonstrating potential for Bell inequality violations.

Contribution

It introduces a novel mesoscopic setup showing two-particle Aharonov-Bohm effects linked to entanglement, without single-particle interference.

Findings

Exchange effects cause two-particle Aharonov-Bohm oscillations.

The setup demonstrates orbital entanglement.

Potential for Bell inequality violation is shown.

Abstract

We analyze a Hanbury Brown Twiss geometry in which particles are injected from two independent sources into a mesoscopic electrical conductor. The set-up has the property that all partial waves end in different reservoirs without generating any single particle interference. There is no single particle Aharonov-Bohm effect. However, exchange effects lead to two-particle Aharonov-Bohm oscillations in current correlations. We demonstrate that the two-particle Aharonov-Bohm effect is connected to orbital entanglement which can be used for violation of a Bell Inequality.