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Quantum key distribution (QKD), very closely related to quantum cryptography, is a secure communication method that implements a cryptographic protocol involving components of quantum mechanics. Before discussing quantum cryptography, let’s talk a bit about the basics of classical cryptography.

Classical Cryptography

Cryptography is a method of storing and transmitting data in a…


Simon’s algorithm is not a very influential quantum algorithm like Shor’s or Grover’s. It is kind of a toy algorithm with almost no application in the general sense. Nevertheless, it was the first algorithm to show exponential speedup compared to the classical algorithm to solve this problem. …


In the field of quantum computing, the development of quantum algorithms is much progressive. The advancement of these algorithms is very rigorous, involving extensive analysis seeking to determine the time it would take to run the algorithm and if it would be an advantage over its classical counterpart. But the…

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