Triple Antidot Molecules

TL;DR

This paper reports the creation and modeling of a triple-antidot molecule hosting interacting quantum Hall quasiparticles, demonstrating tunable tunnel coupling and revealing molecular energy levels through conductance measurements.

Contribution

It introduces a novel triple-antidot system with tunable coupling, advancing the understanding of complex antidot arrangements for quantum Hall quasiparticles.

Findings

Measured tunneling conductance spectra show molecular energy levels.

The tunneling model aligns qualitatively with experimental data.

Tunable tunnel coupling via magnetic field demonstrated.

Abstract

We report the realization and modeling of a triple-antidot molecule hosting three interacting quantum Hall quasiparticles, with tunnel coupling between antidots tunable via the magnetic field. The measured tunneling conductance spectrum reveals the molecular energy levels arising from the inter-antidot coupling and Coulomb interaction. A tunneling model is established which shows good qualitative agreement with experimental observations. This work lays the foundation for the realization of complex systems of antidots for quantum Hall quasiparticles with non-trivial quantum statistics.