Wherever you fall on the spectrum of quantum skeptics, you can't deny that the potential of this technology is fascinating. Don't worry, we admit we don't quite understand it yet, but the founders of QuiX Quantum do.
Together with scientists from Leibniz University Hannover, the team demonstrated a fully integrated quantum light source on a chip smaller than the size of a one-euro coin.
A study titled "Fully on-chip photonic turnkey quantum source for entangled qubit/qudit state generation," just FYI, was published this week in Nature Photonics. Its results could reportedly prove a game-changer for technologies such as quantum computing.
Photonics offers thermal advantages
Quantum photonics is a field of research that investigates the behavior of light and its interactions with matter at the quantum level. Quantum light sources produce photons that can be used as quantum bits or qubits. One of the main advantages of photonics compared to superconducting approaches is that it is compatible with room temperature operating conditions.
However, most sources are external laser systems, so they are bulky and non-reproducible, and therefore not suitable for use outside the laboratory or for large-scale production. Integrated or on-chip sources are becoming more popular because they are more compact and stable.
A fully integrated light source like the one demonstrated by QuiX and Leibniz University scientists will allow all stages of quantum information processing (QIP) to be on a single chip, leading to greater stability and scalability of the technology.
Plug-and-play photonic solutions
QuiX Quantum was founded in January 2019. Since then, the company has raised more than €5.5 million in funding and has already become the European market leader in photonics-based quantum computing hardware. They sold their first quantum processors in 2021 and are building €14 million 8- and 64-qubit Universal Quantum Computers for the German Aerospace Center.
The company says it aims to "continue to disrupt quantum computing with our industry-leading, scalable, future-proof, plug-and-play integrated photonics solutions." His recent breakthrough couldn't have come at a better time. The EU has just launched a €19 million project to help quantum startups move from the lab to the market.
Earlier this year, QuiX Quantum took home the prestigious Prism Award for its 20-mode Quantum Photonic Processor. This award is known as the "Oscars of Photonics" given during the Photonics West conference in San Francisco.
"In four years, we've gone from an idea to delivering award-winning, cutting-edge hardware for photonic quantum computing," said Stefan Hengesbach, CEO of Quix. “This award-winning processor is a foundational element of our current generation of quantum computers, which has already made a huge impact on the quantum ecosystem as an excellent tool for performing fundamental quantum mechanical experiments on a chip.
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