The physics of quantum communication is definitely complex.
Data eavesdroppers could intercept and read any data being carried via classical light without getting noticed.
The photons cant be measured without being destroyed so any kind of hacking would be impossible.
Therefore, an effective source of quantum light would enable effortlessly secure communication.
They understood that a modified nanoscale laser can be used to effectively produce quantum light for communication.
But in this case, its background light thats being cancelled out instead of sound.
We canceled it out to reveal and emphasise the quantum signal hidden beneath.
To cancel the unwanted classical light, researchers adapted an interference technique borrowed from 1930s-era radio engineering.
This is a very promising development, Vuckovic said.
It provides us with a practical pathway to secure quantum communications.
She and her team are now working on creating a working prototype.
The research has beenpublished inNature Photonics.
source: www.techworm.net
