High-speed quantum encryption may help secure the future internet
By adjusting the time at which the photon is released, and a property of the photon called the phase, their system can encode two bits of information per photon instead of one. This trick, paired with high-speed detectors developed by Clinton Cahall, graduate student in electrical and computer engineering, and Jungsang Kim, professor of electrical and computer engineering at Duke, powers their system to transmit keys five to 10 times faster than other methods.
Read more at: https://phys.org/news/2017-11-high-speed-quantum-encryption-future-internet.html#jCp