The Deterministic Quantum Dots for Quantum Photonics (DeQD) project represents a collaborative effort to advance quantum photonic technology, ultimately enabling the creation of synchronized, indistinguishable photons and advancing the fields of optical quantum computing and secure quantum communication. This progress hinges on innovative approaches to quantum material growth and device integration.

A single chip housing single-photon sources capable of generating multiple synchronous and indistinguishable photons on demand is a sought-after component in quantum computation and quantum cryptography.

Optical quantum computing is a rapidly advancing approach, and deterministic single-photon sources offer a promising avenue for scaling up. Previous work has confirmed the feasibility of this approach, demonstrating that the photon quality is sufficient to achieve quantum advantage. Scaling up to multiple single-photon sources is the next significant milestone, demanding further progress in quantum material growth and device fabrication. The outcome of the DeQD project is a novel method for deterministic growth of quantum dots and integrating them precisely into a photonic structure. Quantum dot growth relies on a molecular beam epitaxy system at DFM, followed by nanofabrication of devices at Sparrow Quantum and optical spectroscopy at NBI.

The project period is between 2024-04-01 and 2027-04-01.