%0 Journal Article %A Bradley Christensen and Kevin T. McCusker and Daniel J. Gauthier and Daniel Kumor and Venkat Chandar and P. G. Kwiat %D 2013 %J International Journal of Nuclear and Quantum Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 73, 2013 %T Higher-Dimensional Quantum Cryptography %U https://publications.waset.org/pdf/5569 %V 73 %X We report on a high-speed quantum cryptography system that utilizes simultaneous entanglement in polarization and in “time-bins". With multiple degrees of freedom contributing to the secret key, we can achieve over ten bits of random entropy per detected coincidence. In addition, we collect from multiple spots o the downconversion cone to further amplify the data rate, allowing usto achieve over 10 Mbits of secure key per second. %P 44 - 46