Journal article
High-fidelity readout of trapped-ion qubits
- Abstract:
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We demonstrate single-shot qubit readout with a fidelity sufficient for fault-tolerant quantum computation. For an optical qubit stored in 40Ca+ we achieve 99.991(1)% average readout fidelity in 10^6 trials, using time-resolved photon counting. An adaptive measurement technique allows 99.99% fidelity to be reached in 145 μs average detection time. For 43Ca+, we propose and implement an optical pumping scheme to transfer a long-lived hyperfine qubit to the optical qubit, capable of a theoretic...
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- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 269.0KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevLett.100.200502
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Bibliographic Details
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 100
- Issue:
- 20
- Article number:
- 200502
- Publication date:
- 2008-05-01
- DOI:
- EISSN:
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1079-7114
- ISSN:
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0031-9007
Item Description
- Language:
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English
- Keywords:
- Subjects:
- UUID:
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uuid:9ef291a6-a3c8-4f69-a7a7-031dd696b15d
- Local pid:
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ora:2869
- Deposit date:
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2009-08-17
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2008
- Notes:
- Citation: Myerson, A. H. et al. (2008). 'High-fidelity readout of trapped-ion qubits', Physical Review Letters 100(20), 200502. [Available at http://prl.aps.org/]. © 2008 The American Physical Society.
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