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IBM Unveils Plan for 200-Qubit Error-Corrected Quantum Computer by 2028

Leveraging low-density parity check codes in a modular design, IBM will scale Starling toward cloud deployment in 2029

A single room filled with large silver boxes connected by metal pipes.
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A view shows the IBM Australia building in Melbourne, Australia, March 24, 2025. REUTERS/Hollie Adams/File Photo

Overview

  • Starling will house 200 logical qubits across about 100 interconnected modules in a new Poughkeepsie, New York data center.
  • IBM’s low-density parity check algorithm uses 12 physical qubits per logical qubit and FPGA-based decoders for real-time error diagnosis.
  • This year’s Loon chip demonstration will validate robust error-corrected data storage, followed by the Kookaburra module for computation next year.
  • IBM expects Starling to execute up to 100 million consecutive logical operations accurately, a leap from current systems’ few thousand operations.
  • The company will make Starling available via its cloud platform in 2029 as it competes with Google, Amazon Web Services, Microsoft and startups in the quantum race.