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High-Fidelity Preparation, Gates, Memory, and Readout of a Trapped-Ion Quantum Bit.

Abstract:

We implement all single-qubit operations with fidelities significantly above the minimum threshold required for fault-tolerant quantum computing, using a trapped-ion qubit stored in hyperfine "atomic clock" states of ^{43}Ca^{+}. We measure a combined qubit state preparation and single-shot readout fidelity of 99.93%, a memory coherence time of T_{2}^{*}=50  sec, and an average single-qubit gate fidelity of 99.9999%. These results are achieved in a room-temperature microfabricated surface tra...

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Publication status:
Published

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Authors


Allcock, DT More by this author
Ballance, CJ More by this author
Guidoni, L More by this author
Janacek, HA More by this author
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Publisher:
American Physical Society Publisher's website
Journal:
Physical review letters
Volume:
113
Issue:
22
Pages:
220501
Publication date:
2014-11-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:2676aa0e-490e-44db-8135-8baa6ef20028
Source identifiers:
456220
Local pid:
pubs:456220
Language:
English
Keywords:

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