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Entropy 2012, 14(10), 1877-1893;

Quantum Theory, Namely the Pure and Reversible Theory of Information

Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
QUIT Group, Dipartimento di Fisica, via Bassi 6, I-27100 Pavia, Italy
Author to whom correspondence should be addressed.
Received: 19 June 2012 / Revised: 20 September 2012 / Accepted: 25 September 2012 / Published: 8 October 2012
PDF [498 KB, uploaded 24 February 2015]


After more than a century since its birth, Quantum Theory still eludes our understanding. If asked to describe it, we have to resort to abstract and ad hoc principles about complex Hilbert spaces. How is it possible that a fundamental physical theory cannot be described using the ordinary language of Physics? Here we offer a contribution to the problem from the angle of Quantum Information, providing a short non-technical presentation of a recent derivation of Quantum Theory from information-theoretic principles. The broad picture emerging from the principles is that Quantum Theory is the only standard theory of information that is compatible with the purity and reversibility of physical processes. View Full-Text
Keywords: foundations of quantum mechanics; quantum information; purification foundations of quantum mechanics; quantum information; purification

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Chiribella, G.; D’Ariano, G.M.; Perinotti, P. Quantum Theory, Namely the Pure and Reversible Theory of Information. Entropy 2012, 14, 1877-1893.

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