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Quantum Processes Systems, and Information

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Cambridge University Press, Mar 25, 2010 - Science - 469 pages
A new and exciting approach to the basics of quantum theory, this undergraduate textbook contains extensive discussions of conceptual puzzles and over 800 exercises and problems. Beginning with three elementary 'qubit' systems, the book develops the formalism of quantum theory, addresses questions of measurement and distinguishability, and explores the dynamics of quantum systems. In addition to the standard topics covered in other textbooks, it also covers communication and measurement, quantum entanglement, entropy and thermodynamics, and quantum information processing. This textbook gives a broad view of quantum theory by emphasizing dynamical evolution, and exploring conceptual and foundational issues. It focuses on contemporary topics, including measurement, time evolution, open systems, quantum entanglement, and the role of information.
  

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Contents

2Qubits
15
States and observables
47
Distinguishability and information
79
Quantum dynamics
98
Information and ebits
140
Density operators
158
9Opensystems
182
A particle in space
202
Stationary states in 1D
306
Bound states in 3D
335
Perturbation theory
349
Quantum information processing
366
Classical and quantum entropy
392
Error correction
419
Appendix A Probability
437
Appendix B Fourier facts
444

Dynamics of a free particle
224
Spin and rotation
247
Ladder systems
268
Many particles
282
Gaussian functions
451
Index
463
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About the author (2010)

Benjamin Schumacher is Professor of Physics at Kenyon College. He coined the term 'qubit' and invented quantum data compression, among other contributions to quantum information theory.

Michael D. Westmoreland is Professor of Mathematics at Denison University. Trained as an algebraist, for many years he has researched nonstandard logics, models of computation, and quantum information theory.

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