Part 4/12:
Transitioning from computing to sensing, Dr. Gilbert explained how quantum sensing enhances image resolution to unprecedented levels, surpassing classical capabilities. Drawing an analogy, he likened quantum sensors to optimal eyewear that clears up blurry images. Meanwhile, in quantum communication, he delved into protocols such as quantum key distribution (QKD), which ensures secure communication through unbreakable keys.
Dr. Gilbert clarified that while the term "quantum cryptography" has gained popularity, QKD is the precise term that underpins secure messaging. He emphasized the inherent need for authentication methods at the initiation of a secure communication channel, a challenge that remains significant in current quantum protocols.