Hybrid Atom Tweezer Array of Nuclear Spin and Optical Clock Qubits

Demonstrates a dual-isotope ytterbium tweezer array that combines ${}^{171}$Yb nuclear-spin data qubits with ${}^{174}$Yb optical-clock ancilla qubits, making the hybrid data/ancilla version of the alkaline-earth clock-qubit architecture concrete.

Key Results

• Hybrid array with nuclear-spin data qubits and optical-clock ancilla qubits
• 99.1(1.8)% data-qubit coherence retained during 20 ms ancilla-imaging exposure
• Ancilla discrimination fidelity: 0.9992
• Ancilla survival probability: 0.988
• Strong evidence that alkaline-earth clock-style architectures can support low-crosstalk mid-circuit ancilla readout

Links

• Journal: Physical Review X

Zoo Links

• alkaline-earth-neutral-atom-clock-qubit
• nuclear-spin-neutral-atom-qubit
• qubit-readout