Microsoft Quantum Labs are state-of-the-art R&D facilities where engineers and physicists are working to advance fault-tolerant, scalable quantum computing. These facilities use ultra‑low‑temperature cryogenic systems and topological qubit architectures to pursue truly scalable quantum machines – an approach that enabled breakthroughs like Majorana 1, the world’s first quantum processor architecture engineered for million‑qubit integration on a single chip.