Qubit Zoo

Operating two exchange-only qubits in parallel

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Demonstrates simultaneous operation of two neighboring exchange-only qubits in a six-dot segment of an Intel Tunnel Falls device.

Key Results

  • First experimental exchange-only iSWAP and charge-locking Pauli-spin-blockade readout.
  • Sequential and parallelized two-qubit Clifford fidelities: 96.25 ± 0.07% and 95.80 ± 0.08%.
  • Parallel scheduling reduces two-qubit gate duration by about 40%.
  • Sequential interleaved fidelities: CNOT 97.55 ± 0.47%, iSWAP 97.43 ± 0.43%, SWAP 99.03 ± 0.33%.

Graph View