Measuring entangled qutrits and their use for quantum bit commitment

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

*Corresponding author for this work

Research output: Contribution to journalArticle

297 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.

Original languageEnglish
Article number053601
Pages (from-to)053601-1-053601-4
Number of pages4
JournalPhysical Review Letters
Volume93
Issue number5
DOIs
Publication statusPublished - 30 Jul 2004
Externally publishedYes

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    Langford, N. K., Dalton, R. B., Harvey, M. D., O'Brien, J. L., Pryde, G. J., Gilchrist, A., ... White, A. G. (2004). Measuring entangled qutrits and their use for quantum bit commitment. Physical Review Letters, 93(5), 053601-1-053601-4. [053601]. https://doi.org/10.1103/PhysRevLett.93.053601