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#topological qubits
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- The Topological Bet: How Microsoft Is Building Qubits That Are Physically Immune to Errors
Every other qubit platform corrects errors in software, paying a price of hundreds of physical qubits per logical qubit. Microsoft's topological qubit encodes information in the non-local parity of Majorana zero modes — a quantum property that local noise physically cannot disturb. Here is the physics, the hardware, the controversy, and where the approach stands after the February 2025 Nature paper.