Multi-channel architecture for electronic quantum-Hall interferometry

TL;DR

This paper introduces a novel multi-channel architecture for electronic quantum-Hall interferometry, utilizing scattering among parallel edge channels to enable complex interferometric structures similar to optical systems.

Contribution

It presents a new, simply-connected mesa design allowing serial concatenation of interferometric elements, expanding the possibilities for quantum electronic interferometry.

Findings

Proposes a scalable architecture for quantum Hall interferometry

Demonstrates potential for implementing Mach-Zehnder and HBT interferometers

Introduces new quantum electronic structures not previously explored

Abstract

We propose a new architecture for implementing electronic interferometry in quantum Hall bars. It exploits scattering among parallel edge channels. In contrast to previous developments, this one employs a simply-connected mesa admitting serial concatenation of building elements closer to optical analogues. Implementations of Mach-Zehnder and Hambury-Brown-Twiss interferometers are discussed together with new structures yet unexplored in quantum electronics.