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Microsoft claims quantum-computing breakthrough — but some physicists are sceptical

The tech giant aims to make ‘topological’ quantum computers that will reach useful scales faster than competing technologies.
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  1. Davide Castelvecchi
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Microsoft has announced that it has created the first ‘topological qubits’ — a way of storing quantum information that the firm hopes will underpin a new generation of quantum computers. Machines based on topology are expected to be easier to build at scale than competing technologies, because they should better protect the information from noise. But some researchers are sceptical of the company’s claims.

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Nature 638, 872 (2025)

doi: https://doi.org/10.1038/d41586-025-00527-z

References

  1. Microsoft Azure Quantum. Nature 638, 651–655 (2025).

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  2. Aasen, D. et al. Preprint at arXiv https://doi.org/10.48550/arXiv.2502.12252 (2025).

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