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IBM Charts Roadmap to Build First Large-Scale Fault-Tolerant Quantum Computer by 2029

IBM’s roadmap centers on a low-density parity check code that slashes qubit overhead to unlock fault-tolerant performance

IBM Quantum Starling and the roadmap to 2033
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A view shows the IBM Australia building in Melbourne, Australia, March 24, 2025. REUTERS/Hollie Adams/File Photo

Overview

  • IBM plans to construct Starling in Poughkeepsie, New York by 2029 as its first large-scale, error-corrected quantum system hosted in a new data center.
  • The Starling design calls for 200 logical qubits capable of performing 100 million consecutive operations with high accuracy, roughly 20,000 times the power of current machines.
  • A quantum low-density parity check algorithm reduces the overhead to about 12 physical qubits per logical qubit, matching leading industry standards for error correction.
  • Key milestones include IBM Quantum Loon in 2025, Kookaburra in 2026 and Cockatoo in 2027 to validate modular processors and real-time decoding techniques.
  • IBM intends to follow Starling with Blue Jay by 2033, targeting 2,000 logical qubits and a billion operations to tackle practical challenges in chemistry, materials and optimization.