Sparrow Quantum

Sparrow Quantum is a Denmark-based quantum technology company focused on deterministic photonic technology for scalable quantum systems. Its website says the company builds on more than 25 years of quantum photonics research from Professor Peter Lodahl’s group at the Niels Bohr Institute in Copenhagen. The company describes itself as a spin-out from that research environment and says it develops on-chip single-photon sources and integrated photonic systems.

According to the company, its technology is aimed at quantum computing, quantum networking, and quantum interconnects. The website highlights a deterministic photon source chip for custom quantum systems and an integrated platform called Sparrow Core that combines source, control, and operation. Sparrow Quantum lists its address in Frederiksberg, Denmark, and states that founder Peter Lodahl was appointed CEO in October 2026.