Conference item

Decoherence and quantum error correction in frequency standards

Abstract:: The precision of frequency measurements performed on trapped ions in the presence of decoherence is analysed. In particular, standard Ramsey spectroscopy on uncorrelated ions and optimal measurements on maximally entangled states are proved to lead to the same resolution, while the best precision is achieved using partially entangled preparations. The use of symmetrisation procedures is proposed and it is shown how this allows to overcome even the optimal precision achievable when both the initial preparation and the final measurement are optimized.

Publication status:: Published

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APA Style

Macchiavello, C., Huelga, S., Cirac, J., Ekert, A., & Plenio, M. (2000). Decoherence and quantum error correction in frequency standards. 4th International Conference on Quantum Communication, Measurement, and Computing, 337–345.

MLA Style

Macchiavello, C, et al. “Decoherence and Quantum Error Correction in Frequency Standards.” 4th International Conference on Quantum Communication, Measurement, and Computing, 2000, pp. 337–45.

Chicago Style

Macchiavello, C, S Huelga, J Cirac, A Ekert, and M Plenio. 2000. “Decoherence and Quantum Error Correction in Frequency Standards.” In 4th International Conference on Quantum Communication, Measurement, and Computing, 337–45.
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Authors

+ Macchiavello, C More by this author

Role:: Author

+ Huelga, S More by this author

Role:: Author

+ Cirac, J More by this author

Role:: Author

+ Ekert, A More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Mathematical Institute
Role:: Author

+ Plenio, M More by this author

Role:: Author

Journal:: QUANTUM COMMUNICATION, COMPUTING, AND MEASUREMENT 2 More from this journal
Pages:: 337-345
Publication date:: 2000-01-01
Event title:: 4th International Conference on Quantum Communication, Measurement, and Computing
ISBN:: 0306463075

Keywords:: STATES

STATISTICAL DISTANCE

PROJECTION NOISE
Pubs id:: pubs:13168
UUID:: uuid:e8dfb3ca-bd5f-4c16-89ca-5f6bee5af898
Local pid:: pubs:13168
Source identifiers:: 13168
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_e8dfb3cabd5f4c1689ca5f6bee5af898

Terms of use

Copyright date:: 2000

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

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