Measuring entangled qutrits and their use for quantum bit commitment

N.K. Langford, R.B. Dalton, M.D. Harvey, JL O'Brien, G.J. Pryde, A Gilchrist, S.D. Bartlett, A.G. White

Research output: Contribution to journalArticle (Academic Journal)peer-review

300 Citations (Scopus)

Abstract

Entangled photonic qudits encoded in transverse spatial modes were characterized by using quantum state tomography. A technique for using this system to implement the best known bit commitment (BC) protocol was analyzed. It was observed that extremely high purities and fidelities were obtained for a range of single qubit states. It was found that the requirements on the initial two-qutrit entangled state were extremely stringent.
Translated title of the contributionMeasuring entangled qutrits and their use for quantum bit commitment
Original languageEnglish
Pages (from-to)053601-1 - 053601-4
Number of pages4
JournalPhysical Review Letters
Volume93 (5)
DOIs
Publication statusPublished - Jul 2004

Bibliographical note

Publisher: American Physical Society

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