丁香园AV

Synopsis

Intuition tells us that information about an object is learned by interacting with it; and that information is sent by transmitting physical objects that the receiver can interact with. But quantum mechanics continues to defy intuition with the phenomena of counter factuality, the ability to infer information about an object without interaction, using only the fact that you might have interacted with it. In this presentation I will discuss a protocol that leverages this behaviour to send information between two parties without exchanging particles, presenting applications for secure quantum communication.