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Microsoft just announced the Majorana 2 — a topological quantum chip with qubits 1,000 times more reliable than its predecessor. I got exclusive access to Microsoft’s quantum lab in Copenhagen and sat down with Chetan Nayak (Director of Quantum Hardware at Microsoft) to find out what actually changed, whether the results hold up, and what this means for the timeline to a useful quantum computer.

0:00 — Microsoft Announce Majorana 2
1:07 — How Quantum Computers Actually Work.
3:12 — The Case for Topological Qubits.
4:10 — How to Build a Topological Qubit.
8:06 — Ad break.
9:45 — What Changed in Majorana 2
13:05 — Why Lead Beats Aluminium.
14:33 — When Are We Getting a Quantum Computer?

Microsoft Announcement: https://quantum.microsoft.com/en-us/i… Paper: https://arxiv.org/abs/2606.03884 A note Microsoft shared with me on the retracted 2018 paper: “In 2018, an independent university research paper that drew funding from several sources including Microsoft, was retracted by Nature. The research was not conducted by Dr. Chetan Nayak or any members of the Microsoft team leading the work on the Majorana 1.” My Patreon:🚀 / drbenmiles My Instagram: / drbenmiles My TikTok: / drbenmiles My Newsletter: https://drbenmiles.substack.com/ My Merch: https://www.rockstarscientist.org/ 🔗 Linktree: https://linktr.ee/drbenmiles MY GEAR 📷 Sony A7III https://amzn.to/3OWrmGd 🔎 Sigma 402,965 16 mm F1.4 https://amzn.to/49BNJdq 🎤 Shure SM7B https://amzn.to/4sF3ngx 🎤 Zoom H4n Pro https://amzn.to/3OXsklB 🎤 Sennheiser AVX https://amzn.to/4geWnBi.
arXiv Paper: https://arxiv.org/abs/2606.

A note Microsoft shared with me on the retracted 2018 paper: \.