Paving the way to Photonic Quantum Computing

Unlock the potential of photonic chips and processors and shape the future of information technology

The Power of Quantum Computing

The world of information technology is on the brink of a transformative leap forward. Quantum computing has become a reality, revolutionizing the way of processing and analyzing data. Quantum computing isn’t just about faster calculations; it’s about solving problems that were once considered unsolvable. It holds the potential to tackle some of the most pressing challenges of our time. The future is quantum, starting here.

Lithium Niobate - The optimal material choice for Photonic Integrated Circuits

Q.ANT relies on its own technology platform for quantum chips and photonic integrated circuits – PICs. The central components of the chips are optical waveguides, which enable the control of light and quantum effects in a highly integrated form. In this system, very thin layers of lithium niobate are applied on silicon and then structured into optical waveguides. We believe that lithium niobate – LNOI – is the key to future photonic quantum computing.

PICs based on LNOI  show several main advantages:

“Our pioneering Photonic Processors redefine the way of Computing, ranging from Quantum to AI.”

Andreas Abt


The Power of Quantum Photonic Processors

Photonic processors offer several advantages in the field of quantum computing and information processing:


These guide tiny particles of light (photons) through conductive paths.

Laser source

This beams classical light waves into the waveguide.


Classical laser light is transformed into quantum light. The number of photons is greatly reduced.


This occurs on the waveguide at the narrow points, also called beam splitters. It means that photons can pass into the other waveguide.


This is used to read out the quantum states. In contrast to classical computer chips, quantum chips not only have the two states 0 and 1, but also intermediate states.

Special algorithms

These control the interaction of quanta and calculate previously unsolvable tasks.

The Quantum Chip

At the heart of quantum computers are quantum computer chips that perform calculations. In this process, photons deliver huge computing power.

News about quantum computing

Research cooperation between federal company and Stuttgart-based high-tech start-up Stuttgart, 27. June 2023 – Quantum chips working with light may play a central role on [...]

Stuttgart, June 21, 2023 – Stuttgart-based start-up Q.ANT and the Institute for Microelectronics Stuttgart (IMS CHIPS), today signed an agreement to jointly manufacture quantum chips. [...]

Q.ANT has accomplished the next milestone towards the development of its photonic quantum computer. At the heart of Q.ANT’s approach to photonic quantum computing is [...]

Your contact


Andreas Abt


I look forward to discussing the potentials of Photonic Quantum Computing with you.

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Work in the field of quantum computing

Q.ANT Quantum Computing in the Media