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13h ago

Microsoft’s New 4D Quantum Codes Cut Error Rates 1,000-Fold

Leveraging Atom Computing’s neutral-atom hardware to produce reliable logical qubits with 99.6% fidelity, Microsoft is accelerating development of a scalable fault-tolerant quantum platform.

To compute, traditional computers store information in bits (that is, 0 and 1). Quantum computing is built around qubits. (IBM)
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Overview

  • Microsoft’s four-dimensional geometric codes slash physical error rates by 1,000x and reduce the number of physical qubits needed per logical qubit by fivefold.
  • Through its partnership with Atom Computing, Microsoft has entangled up to 28 logical qubits using neutral-atom technology and achieved 99.6% two-qubit gate fidelity.
  • The Microsoft Quantum compute platform now combines these error-correction breakthroughs with cloud computing and AI tools to support wider research and commercial applications.
  • IBM has published a roadmap for its Quantum Starling system, targeting delivery of a large-scale fault-tolerant quantum computer by 2029.
  • Google continues refining its Willow chip and expects to deploy an error-corrected quantum machine by 2029 by balancing logical and physical qubit architectures.