IonQ 10K QPU

Walking Cat Architecture

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Walking Cat

Demonstrated path to megaquop FTQC

Complete blueprint arXiv 2604.19481 Electronic qubit control arXiv 2407.07694 Breakeven qLDPC arXiv 2606.06455 Real-time decoding arXiv 2608.25027 >99.99% two-qubit gate fidelity arXiv 2510.17286
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Legend

  • Data: physical qubits that make up the logical qubits, remaining fixed in place.
  • Ancilla helper qubits used to diagnose errors during a syndrome extraction cycle (SEC).
  • Beacon: qubits that flag when a neighboring qubit is lost to leakage or noise.
  • Magic: qubits that make up magic states, used to perform logical T-gates.
  • Cat: cat states that move throughout the chip to conduct logical measurements.
  • Bell: qubits that make up Bell pairs, used to stitch together two cat states.
  • Reservoir: fresh ions used to replace lost qubits.
SEC 0 · Measurements 0 · T Gates 0 · Qubit Loss 0