A network of crystals for long-distance quantum communication
Tuesday, May 30, 2017 - 09:22
in Physics & Chemistry
Quantum physic can guarantee that a message has not be intercepted before reaching its destination. Thanks to the laws of quantum physic, a particle of light can be in two distinct states simultaneously. This superposition of states is destroyed as soon as it is read. This peculiar feature allows one to detect an evil eavesdropper when sending a message. However, this technique is so far limited to short distances -- until now.