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In October 2025, Google announced the publication of a paper in Nature on a “verifiable quantum advantage” with “Quantum Echoes”. I like the name. It reminded me of one of my preferred Pink Floyd song, from the Meddle album, released in 1971!
Google’s announcement was widely reported in social networks and the media as a breakthrough event. This was completed by the publication of an arXiv preprint with a use case to determine the structure of two simple molecules. But here, we are not at all in a quantum advantage regime.
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Ce 73 ième épisode de Quantum, le podcast de l’actualité quantique, fête les 6 années de ce podcast. Avec Fanny Bouton, nous faisons comme d’habitude le point sur l’actualité quantique.
Voici la version texte et les liens utiles du podcast:
Sortie de la 8ième édition de Understanding Quantum Technologies
Comme le nouvel iPhone sorti il y a quelques semaines, c’est la meilleure version de tous les temps ! Tout son contenu a été mis à jour, sur tous les plans, scientifiques, technologiques, fournisseurs et écosystèmes. C’est votre Hitchiker’s guide to the quantum galaxy ! Cette version adopte un nouveau format et une nouvelle présentation grâce à une migration fastidieuse de Word vers LaTeX.
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I am happy and relieved to release Understanding Quantum technologies 2025. It is the 8th edition of this book and the fifth in English. For the first time, I reduced its size, from 1,554 to 1,514 pages, while increasing its content size. I’ll explain why and how later.  It is always organized in five parts for e-readers but the most commonly used version is the single free-to-download PDF file containing all parts.
This post describes the book organization, how to download it, including the short format version of 36 pages, its new content and its uniqueness. It explains how it was created and updated including my migration to LaTeX and adds some fun facts. At last, I acknowledge the folks who helped me improve it. I really encourage you to be outspoken with me and help me improve the book content. I correct mistakes as readers help me discover them!
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