Scalable simultaneous multiqubit readout with 99.99% single-shot fidelity
We describe single-shot readout of a trapped-ion multiqubit register using space- and time-resolved camera detection. For a single qubit we measure 0.9(3)×10-4 readout error in 400μs exposure time, limited by the qubit's decay lifetime. For a four-qubit register (a "qunybble"), we mea...
| Main Authors: | , , , |
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| 格式: | Journal article |
| 語言: | English |
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2010
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| _version_ | 1826273059630219264 |
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| author | Burrell, A Szwer, D Webster, S Lucas, D |
| author_facet | Burrell, A Szwer, D Webster, S Lucas, D |
| author_sort | Burrell, A |
| collection | OXFORD |
| description | We describe single-shot readout of a trapped-ion multiqubit register using space- and time-resolved camera detection. For a single qubit we measure 0.9(3)×10-4 readout error in 400μs exposure time, limited by the qubit's decay lifetime. For a four-qubit register (a "qunybble"), we measure an additional error of only 0.1(1)×10-4 per qubit, despite the presence of 4% optical cross-talk between neighboring qubits. A study of the cross-talk indicates that the method would scale with a negligible loss of fidelity to 10000 qubits at a density of 1 qubit/μm2, with a readout time of 1μs/qubit. © 2010 The American Physical Society. |
| first_indexed | 2024-03-06T22:22:22Z |
| format | Journal article |
| id | oxford-uuid:557c3cbf-1b57-4eb0-af1d-274c6bbc36a4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:22:22Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:557c3cbf-1b57-4eb0-af1d-274c6bbc36a42022-03-26T16:44:20ZScalable simultaneous multiqubit readout with 99.99% single-shot fidelityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:557c3cbf-1b57-4eb0-af1d-274c6bbc36a4EnglishSymplectic Elements at Oxford2010Burrell, ASzwer, DWebster, SLucas, DWe describe single-shot readout of a trapped-ion multiqubit register using space- and time-resolved camera detection. For a single qubit we measure 0.9(3)×10-4 readout error in 400μs exposure time, limited by the qubit's decay lifetime. For a four-qubit register (a "qunybble"), we measure an additional error of only 0.1(1)×10-4 per qubit, despite the presence of 4% optical cross-talk between neighboring qubits. A study of the cross-talk indicates that the method would scale with a negligible loss of fidelity to 10000 qubits at a density of 1 qubit/μm2, with a readout time of 1μs/qubit. © 2010 The American Physical Society. |
| spellingShingle | Burrell, A Szwer, D Webster, S Lucas, D Scalable simultaneous multiqubit readout with 99.99% single-shot fidelity |
| title | Scalable simultaneous multiqubit readout with 99.99% single-shot fidelity |
| title_full | Scalable simultaneous multiqubit readout with 99.99% single-shot fidelity |
| title_fullStr | Scalable simultaneous multiqubit readout with 99.99% single-shot fidelity |
| title_full_unstemmed | Scalable simultaneous multiqubit readout with 99.99% single-shot fidelity |
| title_short | Scalable simultaneous multiqubit readout with 99.99% single-shot fidelity |
| title_sort | scalable simultaneous multiqubit readout with 99 99 single shot fidelity |
| work_keys_str_mv | AT burrella scalablesimultaneousmultiqubitreadoutwith9999singleshotfidelity AT szwerd scalablesimultaneousmultiqubitreadoutwith9999singleshotfidelity AT websters scalablesimultaneousmultiqubitreadoutwith9999singleshotfidelity AT lucasd scalablesimultaneousmultiqubitreadoutwith9999singleshotfidelity |