Qubit Zoo

High-fidelity entangling gate for double-quantum-dot spin qubits

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GaAs demonstration of a high-fidelity capacitive entangling gate between two – double-dot qubits using large magnetic-field gradients to reduce charge-noise sensitivity.

Key Results

  • Approximately 99% single-qubit gate fidelity.
  • 90% entangling-gate fidelity from self-consistent measurement, state, and process tomography.

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