topological quantum computing

Topological quantum computing is a research approach that uses exotic particles called anyons to encode quantum information in a way that is inherently resistant to errors. Microsoft has invested heavily in this technology, unveiling its Majorana 2 topological quantum chip at Build 2026, which the company claims can lead to a scalable quantum computer by 2029. This chip was developed with the help of Microsoft's agentic AI platform, Discovery. A key experimental milestone was reported in Nature in February 2025, where researchers demonstrated interferometric single-shot parity measurement in InAs–Al hybrid devices, a critical step for topological quantum computation. These advances could eventually enable ultra-secure, error-resilient processors that impact cloud services and desktop computing.