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Teratec 2022 Forum
Wednesday, June 15 - Technical Workshop

Workshop 5 - 2:00 to 6:00 pm

What's new with qubits? A European view
Chaired by Guillaume Colin de Verdière, HPC International Expert, CEA and Jean-Philippe Nominé, Fellow in HPC, CEA


Building scalable and ultra-coherent quantum computers with carbon nanotubes
By Matthieu Desjardins, founder, C12

C12 builds next generation quantum computers powered by the most elementary material: carbon nanotubes. By utilizing single-electron spins hosted in suspended ultra-clean carbon nanotubes, we achieve the closest realization of an ideal spin qubit in vacuum.

We integrate the nanotubes onto semiconductor chips thanks to our proprietary high-throughput technique. Any qubit can be coupled to any other qubit through a custom microwave resonator. Thereby, we achieve isolated yet easily addressable qubits. Our carbon nanotube based technology can scale quantum computing, in the vein of what silicon did for classical computing.

Combining the purity of carbon nanotubes and well-established semiconductor manufacturing, our innovation has the potential to process quantum information at large scale with the highest fidelity.

Biography: Matthieu Desjardins holds a Ph.D. degree in Quantum Electronics since 2016 during which he contributed to two articles published in Nature journals as first authors. He studied engineering at Ecole Polytechnique, completed with a Master of Physics at Freie Universität Berlin.

He founded the startup C12 in 2020. C12 is leading the next materials leap in quantum computing and is on a mission to build reliable quantum computers to speed up highly complex computing tasks, thanks to a unique know-how developed at CNRS and the Physics Laboratory of the Ecole Normale Supérieure in Paris. C12 believes that only a materials science breakthrough will enable large-scale quantum computers.

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