C12 Quantum Electronics in Paris, France has raised $10m to build quantum processors using carbon nanotubes (CNT).
The company was founded by twins Matthieu and Pierre Desjardins in January 2020, alongside Takis Kontos, a research director at CNRS, Matthieu Delbecq and Jérémie Viennot.
A CNT wire is suspended above a silicon chip containing a series of parallel wires that act as control electrodes and as a communication bus. The CNTs are composed of isotropically purified carbon-12 atoms with no carbon-14 so they have zero nuclear spin to minimize any qubit decoherence.
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The money will be used to expand the workforce and establish a pilot production line, designed to include nanotube growth facilities, nano-assembly equipment, quantum measurement hardware, and more. Building upon the achievement of these first milestones, the startup aims to grow a range of quantum accelerators ready to be integrated into classical supercomputers, as well as design application-specific processors within the next five years.
The funds come from 360 Capital, Bpifrance, Airbus Ventures, BNP Paribas Développement, and Octave Klaba, with additional grants from Bpifrance and the Ile-de-France Region.
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