Quantum Computation And Quantum Information

Nielsen and Chuang ask the question: What are the ultimate physical limits to computation and communication? They then go on to describe what a quantum computer is, how it can be used to solve problems faster than familiar "classical" computers, and the real-world implementation of quantum computers. Their book concludes with an explanation of how quantum states can be used to perform remarkable feats of communication, and of how it is possible to protect quantum states against the effects of noise. 91 line diagrams.