Show simple item record

dc.contributor.authorWhite, Andrew G
dc.contributor.authorGilchrist, Alexei
dc.contributor.authorPryde, Geoffrey J
dc.contributor.authorO'Brien, Jeremy L
dc.contributor.authorBremner, Michael J
dc.contributor.authorLangford, Nathan K
dc.date.accessioned2017-05-03T15:07:54Z
dc.date.available2017-05-03T15:07:54Z
dc.date.issued2007
dc.date.modified2014-05-15T22:15:24Z
dc.identifier.issn0740-3224
dc.identifier.doi10.1364/JOSAB.24.000172
dc.identifier.urihttp://hdl.handle.net/10072/15622
dc.description.abstractAccurate characterization of two-qubit gates will be critical for any realization of quantum computation. We discuss a range of measurements for characterizing two-qubit gates. These measures are architectureindependent and span a range of complexity from simple measurement routines to full quantum-state and process tomography. Simple indicative measures, which flag but do not quantify gate operation in the quantum regime, include the fringe visibility, parity, Bell-state fidelity, and entanglement witnesses. Quantitative measures of gate output states include linear entropy and tangle; measures of, and error bounds to, whole-gate operation are provided by metrics such as process fidelity, process distance, and average gate fidelity. We discuss which measures are appropriate, given the stage of development of the gate, and highlight connections between them.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent279098 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherOptical Society of America
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom172
dc.relation.ispartofpageto183
dc.relation.ispartofissue2
dc.relation.ispartofjournalJournal of the Optical Society of America B: Optical Physics
dc.relation.ispartofvolume24
dc.rights.retentionY
dc.subject.fieldofresearchApplied mathematics
dc.subject.fieldofresearchAtomic, molecular and optical physics
dc.subject.fieldofresearchcode4901
dc.subject.fieldofresearchcode5102
dc.titleMeasuring two-qubit gates
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyrightThis paper was published in Journal of the Optical Society of America B: Optical Physics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/JOSAB.24.000172. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
gro.date.issued2007
gro.hasfulltextFull Text
gro.griffith.authorPryde, Geoff


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record