Microsoft Quantum

Microsoft Quantum is the quantum computing organisation within Microsoft, chiefly pursuing topological qubits built from Majorana zero modes in indium arsenide-aluminium semiconductor-superconductor heterostructures. Its Majorana 1 chip, announced in February 2025, is the company's claim to have created and measured a topological qubit, a result that remains contested among condensed-matter physicists and follows earlier retracted nanowire papers. The group also operates the Azure Quantum cloud service, which brokers access to hardware from IonQ, Quantinuum, Rigetti, Pasqal and others, and develops the Q# language and Quantum Development Kit. It is the largest software vendor backing a single-modality hardware bet rather than building superconducting or trapped-ion devices in-house.

AI-written profile · not yet reviewed · 23 September 2026

Headquarters: Redmond, Washington, USA
Status: Public

topological algorithms software

Coverage

The Quantum Insider22 September 2026

Microsoft Quantum, QOLAB Propose Higher Bar For ‘Scalable’ Logical Qubits

Microsoft Quantum and QOLAB researchers posted an arXiv paper proposing a definition of a 'scalable logical qubit.' They argue that progress in error-corrected quantum computing should be judged by more than just the number of logical qubits demonstrated.

OutlookPlausible

If hardware teams adopt the framework for their next progress reports, it could make logical-qubit results comparable across different qubit platforms within two years.

error correctionMicrosoft QuantumQOLAB