25 February 2014 Encoding mutually unbiased bases in orbital angular momentum for quantum key distribution
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Proceedings Volume 8999, Complex Light and Optical Forces VIII; 89991I (2014) https://doi.org/10.1117/12.2038362
Event: SPIE OPTO, 2014, San Francisco, California, United States
Abstract
We encode mutually unbiased bases (MUBs) using the higher-dimensional orbital angular momentum (OAM) degree of freedom and illustrate how these states are encoded on a phase-only spatial light modulator (SLM). We perform (d - 1)- mutual unbiased measurements in both a classical prepare and measure scheme and on entangled photon pairs for dimensions ranging from d = 2 to 5. The calculated average error rate, mutual information and secret key rate show an increase in information capacity as well as higher generation rates as the dimension increases.
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A. Dudley, M. Mafu, S. Goyal, D. Giovannini, M. McLaren, T. Konrad, M. J. Padgett, F. Petruccione, N. Lütkenhaus, A. Forbes, "Encoding mutually unbiased bases in orbital angular momentum for quantum key distribution", Proc. SPIE 8999, Complex Light and Optical Forces VIII, 89991I (25 February 2014); doi: 10.1117/12.2038362; https://doi.org/10.1117/12.2038362
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