Quantum cryptography ensures secure communication from "summary" of The Principles of Quantum Mechanics by P. A. M. Dirac
In the realm of cryptography, the use of quantum principles offers a new avenue for ensuring secure communication. Traditional cryptographic methods rely on mathematical algorithms to encode and decode messages, but these algorithms can be vulnerable to attacks by hackers with sufficiently advanced computing power. Quantum cryptography, on the other hand, leverages the unique properties of quantum mechanics to create a system of communication that is theoretically immune to such attacks. At the heart of quantum cryptography is the concept of quantum key distribution, which involves the transmission of encryption keys using quantum states. These quantum states are inherently fragile and sensitive to disturbances, making it virtually impossible for an eavesdropper to intercept the key without being detected. This is due to the principles of quantum mechanics, which dictate that any observation of a quantum system necessarily alter...
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