Quantum Interference of Tunably Indistinguishable Photons from Remote Organic Molecules

TL;DR

This paper demonstrates quantum interference with photons from remote organic molecules, showing tunable indistinguishability and discussing future enhancements for quantum photonic applications.

Contribution

It introduces a method to control and observe two-photon interference from remote molecules, advancing solid-state quantum light sources.

Findings

Successful two-photon interference from remote molecules

Tunable photon indistinguishability via spectral control

Potential for scalable quantum photonic integration

Abstract

We demonstrate two-photon interference using two remote single molecules as bright solid-state sources of indistinguishable photons. By varying the transition frequency and spectral width of one molecule, we tune and explore the effect of photon distinguishability. We discuss future improvements on the brightness of single-photon beams, their integration by large numbers on chips, and the extension of our experimental scheme to coupling and entanglement of distant molecules.