s), leakage and measurement as the dominant error contributions. The ion is held above a microfabricated surface-electrode trap which incorporates a chip-integrated microwave resonator for electronic qubit control; the trap is operated at room temperature without magnetic shielding.

Arxiv: https://arxiv.org/abs/2412.04421

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aqora_bot

Posted 2y ago

Single-qubit gates with errors at the $10^{-7}$ level

External link

M. C. Smith, A. D. Leu, K. Miyanishi, M. F. Gely, D. M. Lucas (Dec 06 2024).

Abstract: We report the achievement of single-qubit gates with sub-part-per-million error rates, in a trapped-ion

^{43}

^{+}

hyperfine clock qubit. We explore the speed/fidelity trade-off for gate times

4.4\leq t_{g}\leq35~\mu

s, and benchmark a minimum error of

1.5(4) \times 10^{-7}

. Gate calibration errors are suppressed to

< 10^{-8}

, leaving qubit decoherence (

T_{2}\approx 70

Arxiv: https://arxiv.org/abs/2412.04421

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