an informational approach D'Ariano, G. M. (Giacomo M.) creator author. Chiribella, Giulio author. Perinotti, Paolo author. text bibliography enk Cambridge, United Kingdom New York, NY Cambridge University Press 2019 First paperback edition. monographic eng

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xv, 342 pages ; 25 cm "Quantum theory is the soul of theoretical physics. It is not just a theory of specific physical systems, but rather a new framework with universal applicability. This book shows how we can reconstruct the theory from six information-theoretical principles, by rebuilding the quantum rules from the bottom up. Step by step, the reader will learn how to master the counterintuitive aspects of the quantum world, and how to efficiently reconstruct quantum information protocols from first principles. Using intuitive graphical notation to represent equations, and with shorter and more efficient derivations, the theory can be understood and assimilated with exceptional ease. Offering a radically new perspective on the field, the book contains an efficient course of quantum theory and quantum information for undergraduates. The book is aimed at researchers, professionals, students in physics, computer science and philosophy, as well as the curious outsider seeking a deeper understanding of the theory"-- Quantum theory from Hilbert-spaces -- The framework -- The new principles -- Causal theories -- Theories with local discriminability -- The purification principle -- Encoding information -- Three no-go theorems -- Perfectly discriminable states -- Identifying pure states -- Diagonalization -- Conclusive teleportation -- The qubit -- Projections -- The superposition principle -- Derivation of quantum theory. Giacomo Mauro D'Ariano, Giulio Chiribella, Paolo Perinotti. First published : 2017 Includes bibliographical references and index. CSE Quantum theory QC174.12 .C475 2017 530.12 9781108714419 9781107043428 1107043425 2016040126 OU/DLC 241217 20241217150427.0 43846 eng