Journal article

Keeping a single qubit alive by experimental dynamic decoupling

Abstract:: We demonstrate the use of dynamic decoupling techniques to extend the coherence time of a single memory qubit by nearly two orders of magnitude. By extending the Hahn spin-echo technique to correct for unknown, arbitrary polynomial variations in the qubit precession frequency, we show analytically that the required sequence of π-pulses is identical to the Uhrig dynamic decoupling (UDD) sequence. We compare UDD and Carr-Purcell-Meiboom-Gill (CPMG) sequences applied to a single 43Ca+ trapped-ion qubit and find that they afford comparable protection in our ambient noise environment. © 2011 IOP Publishing Ltd.

Publication status:: Published

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APA Style

Szwer, D., Webster, S., Steane, A., & Lucas, D. (2011). Keeping a single qubit alive by experimental dynamic decoupling. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 44(2), 025501–025501.

MLA Style

Szwer, D, et al. “Keeping a Single Qubit Alive by Experimental Dynamic Decoupling.” JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 44, no. 2, 2011, pp. 025501–01.

Chicago Style

Szwer, D, S Webster, A Steane, and D Lucas. 2011. “Keeping a Single Qubit Alive by Experimental Dynamic Decoupling.” JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 44 (2): 025501–.
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Publisher copy:: 10.1088/0953-4075/44/2/025501

Authors

+ Szwer, D More by this author

Role:: Author

+ Webster, S More by this author

Role:: Author

+ Steane, A More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Atomic & Laser Physics
Role:: Author

+ Lucas, D More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Atomic & Laser Physics
Role:: Author

Journal:: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS More from this journal
Volume:: 44
Issue:: 2
Pages:: 025501-025501
Publication date:: 2011-01-28
DOI:: 10.1088/0953-4075/44/2/025501
EISSN:: 1361-6455
ISSN:: 0953-4075

Language:: English
Pubs id:: pubs:124412
UUID:: uuid:14ac1042-ea54-4cc5-a77b-91e84744bb09
Local pid:: pubs:124412
Source identifiers:: 124412
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_14ac1042ea544cc5a77b91e84744bb09

Terms of use

Copyright date:: 2011

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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