Bitcoin Q-Day on the Horizon? New IBM Quantum Chip Expected to Hit Another Milestone – Decrypt

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Bitcoin Q-Day on the Horizon? New IBM Quantum Chip Expected to Hit Another Milestone – Decrypt

By Jason Nelson
Publication Date: 2025-11-12 22:31:00

In brief

  • IBM introduced Nighthawk and Loon quantum processors on Wednesday.
  • Nighthawk’s 120 qubits and 218 couplers support circuits up to 5,000 two-qubit gates.
  • IBM aims for community-verified quantum advantage by 2026 and milestones toward fault tolerance by 2029.

IBM debuted the next steps on its roadmap for practical quantum computing on Wednesday, unveiling upgraded processors, software, and fabrication methods that it said will help push the field toward a verified quantum advantage by 2026 and milestones on the way to fault tolerance by 2029.

“Quantum advantage” refers to the point at which a quantum computer performs a task that no traditional computer can match. Fault tolerance is the ability of a quantum computer to keep its performance stable in the face of errors. If IBM’s roadmap holds, then IBM’s Nighthawk processor would mark a crucial step towards a commercially viable quantum computer by the end of the decade.

While IBM’s announcement puts quantum…

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