Self-homodyne enabled generation of indistinguishable photons

TL;DR

This paper demonstrates that self-homodyne suppression enables the generation of indistinguishable photons from quantum dot-photonic crystal systems, overcoming dissipation issues and advancing scalable quantum photonic technologies.

Contribution

It introduces the use of self-homodyne suppression to produce indistinguishable photons in strongly dissipative quantum systems, enhancing their applicability in quantum information.

Findings

Achieved indistinguishable photon emission using self-homodyne suppression.

Demonstrated tunable quantum statistics of transmitted light.

Platform suitable for scalable on-chip quantum architectures.

Abstract

The rapid generation of non-classical light serves as the foundation for exploring quantum optics and developing applications such as secure communication or generation of NOON-states. While strongly coupled quantum dot-photonic crystal resonator systems have great potential as non-classical light sources due to their promise of tailored output statistics, the generation of indistinguishable photons has been obscured due to the strongly dissipative nature of such systems. Here, we demonstrate that the recently discovered self-homodyne suppression technique can be used to overcome this limitation and tune the quantum statistics of transmitted light, achieving indistinguishable photon emission competitive with state-of-the-art metrics. Furthermore, our nanocavity-based platform directly lends itself to scalable on-chip architectures for quantum information.