The combination of two of the twentieth century's most influential and                 revolutionary scientific theories, information theory and quantum mechanics, gave                 rise to a radically new view of computing and information. Quantum information                 processing explores the implications of using quantum mechanics instead of classical                 mechanics to model information and its processing. Quantum computing is not about                 changing the physical substrate on which computation is done from classical to                 quantum but about changing the notion of computation itself, at the most basic                 level. The fundamental unit of computation is no longer the bit but the quantum bit                 or qubit. This comprehensive introduction to the field offers a thorough exposition                 of quantum computing and the underlying concepts of quantum physics, explaining all                 the relevant mathematics and offering numerous examples. With its careful                 development of concepts and thorough explanations, the book makes quantum computing                 accessible to students and professionals in mathematics, computer science, and                 engineering. A reader with no prior knowledge of quantum physics (but with                 sufficient knowledge of linear algebra) will be able to gain a fluent understanding                 by working through the book. The text covers the basic building blocks of quantum                 information processing, quantum bits and quantum gates, showing their relationship                 to the key quantum concepts of quantum measurement, quantum state transformation,                 and entanglement between quantum subsystems; it treats quantum algorithms,                 discussing notions of complexity and describing a number of simple algorithms as                 well as the most significant algorithms to date; and it explores entanglement and                 robust quantum computation, investigating such topics as quantifying entanglement,                 decoherence, quantum error correction, and fault tolerance.

Quantum Computing: A Gentle Introduction (Scientific and Engineering Computation) PDF

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