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We are back after seven months of break. This is the 85th episode of Decode Quantum, with me, Olivier Ezratty, and Fanny Bouton.
In this new episode, we welcome Christian Weedbrook, the founder and CEO of Xanadu Quantum Technologies (Canada).
He is an Australian born physicist and entrepreneur based in Toronto, Canada. He has a PhD in physics from the University of Queensland, specializing in quantum information theory. He was a postdoc at the MIT and the University of Toronto. Initially, he went to a film school with the aspiration of becoming a director before returning to mathematics and science. He also explored several small-scale entrepreneurial projects including selling heat packs and trading at local flea markets. In 2014, he launched CipherQ, which was specialized in quantum security and cryptography, and he then created Xanadu in 2016.
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Dans ce 77eme épisode de Quantum, le podcast de l’actualité quantique, événementielle, scientifique et technologique, je suis toujours avec Fanny Bouton, Chief Everything du Quantique chez OVHcloud. Nous reprenons le fil normal de l’année et force est de constater que cet écosystème est en mouvement permanent et refuse de nous laisser un peu souffler.
Au menu, nous vous proposons deux fusions-acquisitions concernant respectivement D-Wave et IonQ, et de l’actualité scientifique sur nos startups françaises et au-delà, notamment côté algorithmes quantiques.
Evénéments
Q2B Santa Clara de décembre 2025
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In November 2025, Quantinuum released its Helios QPU with 98 qubits. It also announced it was sold to Singapore as part of a partnership with A*Star and to be deployed there in 2026. Helios got less attention than the recent news coming from Google (Willow, Echoes) and Microsoft (Majorana 1) but it deserves it. It is one of the best QPUs ever produced so far in the NISQ regime. I will look here at its key disclosed technical characteristics. It’s a first for me given I’ve mostly always published such posts only on superconducting and Majorana qubits.
Helios is fairly well described technically in Helios: A 98-qubit trapped-ion quantum computer by Anthony Ransford, M.S. Allman et al, arXiv, November 2025 (25 pages). Most of the information below comes from this preprint paper.
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