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| Main Authors: | , , , , |
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| Format: | Preprint |
| Udgivet: |
2024
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| Online adgang: | https://arxiv.org/abs/2412.04421 |
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| _version_ | 1866918057545302016 |
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| author | Smith, M. C. Leu, A. D. Miyanishi, K. Gely, M. F. Lucas, D. M. |
| author_facet | Smith, M. C. Leu, A. D. Miyanishi, K. Gely, M. F. Lucas, D. M. |
| contents | We report the achievement of single-qubit gates with sub-part-per-million error rates, in a trapped-ion $^{43}$Ca$^{+}$ hyperfine clock qubit. We explore the speed/fidelity trade-off for gate times $4.4\leq t_{g}\leq35~μ$s, and benchmark a minimum error per Clifford gate of $1.5(4) \times 10^{-7}$. Calibration errors are suppressed to $< 10^{-8}$, leaving qubit decoherence ($T_{2}\approx 70$ 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_04421 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Single-qubit gates with errors at the $10^{-7}$ level Smith, M. C. Leu, A. D. Miyanishi, K. Gely, M. F. Lucas, D. M. Quantum Physics We report the achievement of single-qubit gates with sub-part-per-million error rates, in a trapped-ion $^{43}$Ca$^{+}$ hyperfine clock qubit. We explore the speed/fidelity trade-off for gate times $4.4\leq t_{g}\leq35~μ$s, and benchmark a minimum error per Clifford gate of $1.5(4) \times 10^{-7}$. Calibration errors are suppressed to $< 10^{-8}$, leaving qubit decoherence ($T_{2}\approx 70$ 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. |
| title | Single-qubit gates with errors at the $10^{-7}$ level |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2412.04421 |