Cryptography is a funny thing. Supposedly, if you do the right kind of maths to a message, you can send it off to somebody else, and as long as they’re the only one that knows a secret little thing, ...

Quantum secure direct communication (QSDC) is a type of quantum communication that directly employs quantum states as information carriers for secure communication. It has the characteristics of ...

Physicists have developed a breakthrough concept in quantum encryption that makes private communication more secure over significantly longer distances, surpassing state-of-the-art technologies. For ...