  Quantum computing and quantum communications are exciting new frontiers in
computing and communications. Indeed, the massive investments made by the
governments of the US, China, and EU in these new technologies are not a secret
and are based on the expected potential of these technologies to revolutionize
communications, computing, and security. In addition to several field trials
and hero experiments, a number of companies such as Google and IBM are actively
working in these areas and some have already reported impressive demonstrations
in the past few years. While there is some skepticism about whether quantum
cryptography will eventually replace classical cryptography, the advent of
quantum computing could necessitate the use of quantum cryptography as the
ultimate frontier of secure communications. This is because, with the amazing
speeds demonstrated with quantum computers, breaking cryptographic keys might
no longer be a daunting task in the next decade or so. Hence, quantum
cryptography as the ultimate frontier in secure communications might not be
such a far-fetched idea. It is well known that Heisenberg's Uncertainty
Principle is essentially a "negative result" in Physics and Quantum Mechanics.
It turns out that Heisenberg's Uncertainty Principle, one of the most
interesting results in Quantum Mechanics, could be the theoretical basis and
the main scientific principle behind the ultimate frontier in quantum
cryptography or secure communications in conjunction with Quantum Entanglement.

Cryptography and Security;Quantum Physics