Quantum Cryptography Explained
Original upload · 8:12
Can the physics of a message help reveal that somebody tried to intercept it? Physics Girl introduces quantum cryptography through an accessible visual explanation, giving the collection a security story with a different presentation style from the interviews and laboratory documentary. This is an older foundations video, so treat distance records and technology examples as historical. The enduring value is the distinction between detecting disturbance in a quantum communication protocol and merely hiding a message with an ordinary cipher. It also makes a useful starting point for explaining why quantum key distribution and post-quantum cryptography are different approaches, not interchangeable names.
Video by Physics Girl. Added to QubitWire .