Structured light promises path to faster, more secure communications

Eurekalert  November 5, 2019
Researchers in South Africa review the progress being made in using structured light in quantum protocols to create a larger encoding alphabet, stronger security and better resistance to noise. Since patterns of light can be distinguished from each other, they can be used as a form of alphabet. Its information capacity is much higher than polarized light and security is stronger, and the robustness to noise is improved. It turns out that many protocols can be efficiently implemented withotterns of light. Unfortunately, the toolkit to manage these patterns is still underdeveloped and requires a lot of work…read more. Open Access TECHNICAL ARTICLE

The creation of hybrid entangled photons by combining polarisation with a “twisted” pattern that carries orbital angular momentum. Credit: Wits University

Posted in Communications technology and tagged , , , .

Leave a Reply