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

doi:10.1103/PhysRevLett.93.053601

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

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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 language	English
Article number	053601
Journal	Physical Review Letters
Volume	93
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.93.053601
Publication status	Published - 30 Jul 2004
Externally published	Yes

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Measuring entangled qutrits and their use for quantum bit commitment

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