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Entropy 2012, 14(10), 1877-1893; doi:10.3390/e14101877

Quantum Theory, Namely the Pure and Reversible Theory of Information

1,* , 2
1 Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China 2 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
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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.
Keywords: foundations of quantum mechanics; quantum information; purification foundations of quantum mechanics; quantum information; purification
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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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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