Using light to encrypt communications

Researchers of the UT found a new way to protect data from attacks with quantum computers. As they published today in New Journal of Physics. With quantum computers on the rise, we can no longer exclude the possibility that a quantum computer will become so powerful it can break existing cryptography. Single particles of light are already being used to protect data but the transmission of one bit per photon is slow. Pepijn Pinkse led the experiment to increase the transmission speed up to seven bits per photon.

Source:
https://phys.org/news/2019-12-encrypt.html