Journal article
In situ characterization of qubit-drive phase distortions
- Abstract:
- Reducing errors in quantum gates is critical to the development of quantum computers. To do so, any distortions in the control signals should be identified; however, conventional tools are not always applicable when part of the system is under high vacuum, cryogenic, or microscopic. Here, we demonstrate a method to detect and compensate for amplitude-dependent phase changes, using the qubit itself as a probe. The technique is implemented using a microwave-driven trapped-ion qubit, where correcting phase distortions leads to a threefold improvement in the error of single-qubit gates implemented with pulses of different amplitudes, to attain state-of-the-art performance benchmarked at 1.6(4) ×10−6 error per Clifford gate.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 1.0MB, Terms of use)
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- Publisher copy:
- 10.1103/physrevapplied.22.024001
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Applied More from this journal
- Volume:
- 22
- Issue:
- 2
- Article number:
- 024001
- Publication date:
- 2024-08-01
- Acceptance date:
- 2024-07-02
- DOI:
- EISSN:
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2331-7019
- ISSN:
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2331-7043
- Language:
-
English
- Pubs id:
-
2021351
- Local pid:
-
pubs:2021351
- Deposit date:
-
2024-08-22
- ARK identifier:
Terms of use
- Copyright date:
- 2024
- Rights statement:
- Published by the American Physical Society under the terms of the Creative CommonsAttribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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