TL;DR: Microsoft's approach uses Majorana zero modes in topological superconductors to create qubits that are inherently protected from local noise. If successful, topological qubits would need dramatically
Microsoft's approach uses Majorana zero modes in topological superconductors to create qubits that are inherently protected from local noise. If successful, topological qubits would need dramatically less error correction overhead than conventional approaches. Microsoft demonstrated the first topological qubit in February 2025, though scaling to many qubits remains a major challenge.
Type
Topological protection (inherent)
Overhead
Potentially minimal; topological qubits are inherently protected
Threshold
N/A - topological protection eliminates need for active correction
Key Result
Microsoft demonstrated first topological qubit (Feb 2025); Majorana zero modes confirmed