Quantum Information by Jaeger, Gregg;

Hosszú leírás:

In one word, this is a responsible book; the rest is commentary. Around 1992 a few of us were led by Charles Bennett into a Garden of Eden of quantum information, communication, and computation. No sooner had we started exploring our surroundings and naming the birds and the beasts, than Peter Shor put an end to that apparent innocence by showing that factoring could be turned—by means of quantum hardware—into a po- nomial task. Fast factoring meant business; everybody seemed to be awfully interested in factoring. Not that anyone had any use for factoring per se, but it seemed that all the world’s secrets were protected by factor-keyed padlocks. Think of all the power and the glory (and something else) that you might get by acting as a consultant to big businesses and government agencies, helping them pick everyone else’s locks and at the same time build unpickable ones (well, nearly unpickable) for themselves. And if one can get an exponential advantage in factoring, wouldn’t an exponential advantage be lying around the corner for practically any other computational task? Quantum infor- tion “and all that” has indeed blossomed in a few years into a wonderful new chapter of physics, comparable in ?avor and scope to thermodynamics. It has alsoturnedintoaveritable“industry”—producingpapers,conferences,exp- iments, e?ects, devices—even proposals for quantum computer architectures.

This book gives an overview for practitioners and students of quantum physics and information science. Unlike other books in quantum information and computing, this book is intended to be concise and to the point. This makes it useful in practical context of reading journal articles, performing research calculations or problems in graduate courses in physics and engineering. It is designed to provide ready access to essential information on quantum information processing and communication, such as definitions, protocols and algorithms. Quantum information science is a rapidly expanding area of technology and research containing a diverse spectrum of mathematical tools rarely found in clear and concise form. This book brings together this information from its various sources. It allows researchers and students in a broad range of areas to have this vital material directly at hand when needed. This is made possible by a concise and thorough format.

Tartalomjegyzék:

Qubits.- Measurements and quantum operations.- Quantum nonlocality and interferometry.- Classical information and communication.- Quantum information.- Quantum entanglement.- Entangled multipartite systems.- Quantum state and process estimation.- Quantum communication.- Quantum decoherence and its mitigation.- Quantum broadcasting, copying, and deleting.- Quantum key distribution.- Classical and quantum computing.- Quantum algorithms.