2012/09/30 by G. Chiribella, G. M. D'Ariano, P. Perinotti
Physics and Astronomy · #quant-ph #physics.hist-ph
paper · pdf · doi:10.3390/e14101877
published as Entropy, 14(10), 1877-1893 (2012) · 20 pages, 3 figures, contribution to the Special Issue: Selected Papers from Symposium on Natural/Unconventional Computing and Its Philosophical Significance. This paper is meant to be an introduction for non-specialists to the main results of arXiv:1011.6451 and arXiv:0908.1583
arxiv created 2012/10/08 · arxiv updated 2012/10/09
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 compatible with the purity and reversibility of physical processes.