Here is an excellent video from a man who has been a founder and guideline from the current models of Quantum Information Processing: David Deutsh.

About David:

DAVID DEUTSCH, FRS is an Israeli-born British physicist at the University of Oxford. His research in quantum physics has been influential and highly acclaimed. His papers on quantum computation laid the foundations for that field, breaking new ground in the theory of computation as well as physics, and have triggered an explosion of research efforts worldwide. He is the first person to formulate a description for a quantum Turing machine, as well as specifying an algorithm designed to run on a quantum computer. He is also a proponent of the many-worlds interpretation of quantum mechanics.

About the Conversation:

*There’s a notorious problem with defining information within physics, namely that on the one hand information is purely abstract, and the original theory of computation as developed by Alan Turing and others regarded computers and the information they manipulate purely abstractly as mathematical objects. Many mathematicians to this day don’t realize that information is physical and that there is no such thing as an abstract computer. Only a physical object can compute things.*

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