Artificial-atom arrays in moire superlattices for quantum optics

TL;DR

This paper proposes using moire superlattices as a scalable, tunable solid-state platform for quantum optics, enabling arrays of nearly identical artificial atoms for single-photon manipulation.

Contribution

It introduces moire superlattices as a novel platform for creating scalable, tunable arrays of artificial atoms with broad spectral coverage for quantum optical applications.

Findings

Moire superlattices form arrays of nearly identical artificial-atom states.

These arrays have tunable spacing and adjustable electronic structures.

They operate as atomically thin, scalable, periodic emitters.

Abstract

Solid-state platforms are particularly attractive for quantum optics because they facilitate on-chip integration and are compatible with established semiconductor and photonic technologies. However, a major challenge in solid-state quantum optics is the fabrication of arrays of identical emitters, such as quantum dots. In this work, we propose moire superlattices as a novel solid-state platform for manipulating light at the single-photon level. Moire superlattices form arrays of artificial-atom states characterized by nearly identical optical transition energies, tunable spacing, and highly adjustable electronic structures. They naturally operate as atomically thin, scalable, periodic emitters, making them ideal for quantum applications. Additionally, the extensive materials database of moire superlattices offers spectral coverage spanning a broad range of optical wavelengths.