Qubit Zoo

Architecture for a large-scale ion-trap quantum computer

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Proposes the QCCD (quantum charge-coupled device) architecture for scalable trapped-ion quantum computing: ions are shuttled between specialized zones for storage, gate operations, and readout in a segmented surface-electrode trap. Foundation for Quantinuum’s and IonQ’s scaling approaches.

Key Results

  • Segmented trap with dedicated processing, memory, and readout zones
  • Ion shuttling between zones via time-varying electrode voltages
  • Avoids the need for very long ion chains (which limit gate fidelity)
  • Enables modular, scalable architecture for >1000 qubits

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