www.ucl.ac.uk/quantum-devices/carbon-nanotube-spin-qubits As mentioned in this link, they collaborate with C12 Quantum Electronics.
Official website: www.c12qe.com/
www.c12qe.com/articles/la-deeptech-c12-inaugure-sa-premiere-ligne-de-production-de-puces-quantiques-a-paris explains their choice of address: there is a hill in the 5th arrondissement of Paris, and they have a lab in a deep basement, which helps reduce vibrations from the external environment. Interesting.
Founed by two twin brothers who both studied at École Polytechnique: Pierre Desjardins and Matthieu Desjardins.
Organization developing carbon nanotube spin quantum computer by 
Ciro Santilli 37 Created 2024-09-15 Updated 2025-07-16
Ciro Santilli 37 Created 2024-09-15 Updated 2025-07-16
Produced as part of the thorium fuel cycle.
This isomer has an interest for atomic clocks due to an exceptionally low energy nuclear isomer transition: www.quantamagazine.org/the-first-nuclear-clock-will-test-if-fundamental-constants-change-20240904/
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