Dynamic generation of orbital quasiparticle entanglement in mesoscopic conductors

TL;DR

This paper presents a method to dynamically generate and detect orbital entanglement of electron-hole pairs in a mesoscopic conductor using a time-dependent potential and Bell inequality violations.

Contribution

It introduces a scheme for creating and measuring orbital entanglement in a quantum Hall interferometer via time-dependent potential modulation.

Findings

Orbital entanglement can be generated through potential variation.

Bell inequality violation indicates successful entanglement detection.

The scheme works in both weak and strong amplitude regimes.

Abstract

We propose a scheme for dynamically creating orbitally entangled electron-hole pairs through a time-dependent variation of the electrical potential in a mesoscopic conductor. The time-dependent potential generates a superposition of electron-hole pairs in two different orbital regions of the conductor, a Mach-Zehnder interferometer in the quantum Hall regime. The orbital entanglement is detected via violation of a Bell inequality, formulated in terms of zero-frequency current noise. Adiabatic cycling of the potential, both in the weak and strong amplitude limit, is considered.