Implementation of an m-ary three-stage quantum cryptography protocol

Mayssaa El Rifai; Nikhil Punekar; Pramode K. Verma

doi:10.1117/12.2024185

26 September 2013 Implementation of an m-ary three-stage quantum cryptography protocol

Mayssaa El Rifai, Nikhil Punekar, Pramode K. Verma

Proceedings Volume 8875, Quantum Communications and Quantum Imaging XI; 88750S (2013) https://doi.org/10.1117/12.2024185
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

This paper introduces an m-ary version of the Three-stage Quantum Cryptography protocol. The three-stage protocol was first proposed in 2006 and implemented in 2012. The m-ary version of the three-stage protocol proposed in this paper results in enhanced data transfer between a sender Alice and a receiver Bob since each pulse carries more than one bit of information. An experimental realization of the m-ary three-stage protocol is also reported in this paper. The implementation has used free-space optics as the transmission medium and passive optical components controlled through LabView. Furthermore, analytical results that address the impact of the noise factor and its trade-off with data rate are presented. This analysis includes a study of the probability of errors and channel capacity variations in terms of the noise variance factor for the m-ary three-stage protocol using two, four and eight levels. Limits within which the m-ary three-stage protocol can be used with higher performance efficiency compared to its original version counterpart are set.

Citation Download Citation

Mayssaa El Rifai, Nikhil Punekar, and Pramode K. Verma "Implementation of an m-ary three-stage quantum cryptography protocol", Proc. SPIE 8875, Quantum Communications and Quantum Imaging XI, 88750S (26 September 2013); https://doi.org/10.1117/12.2024185

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