Journal article
High-fidelity trapped-ion quantum logic using near-field microwaves
- Abstract:
- We demonstrate a two-qubit logic gate driven by near-field microwaves in a room-temperature microfabricated surface ion trap. We introduce a dynamically decoupled gate method, which stabilizes the qubits against fluctuating energy shifts and avoids the need to null the microwave field. We use the gate to produce a Bell state with fidelity 99.7(1)%, after accounting for state preparation and measurement errors. The gate is applied directly to ^{43}Ca^{+} hyperfine "atomic clock" qubits (coherence time T_{2}^{*}≈50 s) using the oscillating magnetic field gradient produced by an integrated microwave electrode.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 566.7KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevLett.117.140501
Authors
- Publisher:
- American Physical Society
- Journal:
- Phys Rev Lett More from this journal
- Volume:
- 117
- Issue:
- 14
- Pages:
- 140501
- Publication date:
- 2016-09-30
- Acceptance date:
- 2016-08-22
- DOI:
- EISSN:
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1079-7114
- ISSN:
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0031-9007
- Language:
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English
- Keywords:
- Pubs id:
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pubs:631521
- UUID:
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uuid:2784ab85-b8ea-4af7-a016-682384611ea2
- Local pid:
-
pubs:631521
- Source identifiers:
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631521
- Deposit date:
-
2016-11-01
Terms of use
- Copyright holder:
- © 2016 American Physical Society
- Copyright date:
- 2016
- Notes:
- © 2016 American Physical Society. This is the author accepted manuscript following peer review version of the article. The final version is available online from American Physical Society at: 10.1103/PhysRevLett.117.140501
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