An Introduction to Quantum Computing
4.1 The Quantum Circuit Model 61 4.2 Quantum Gates 63 4.2.1 1-Qubit Gates 63 4.2.2 Controlled-U Gates 66 4.3 Universal Sets of Quantum Gates 68 4.4 Efficiency of Approximating Unitary Transformations 71 4.5 Implementing Measurements with Quantum Circuits 73 5 SUPERDENSE CODING AND QUANTUM
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Quantum Computation and Quantum Information
mmrc.amss.cas.cnContents xi 4.3 Controlled operations 177 4.4 Measurement 185 4.5 Universal quantum gates 188 4.5.1 Two-level unitary gates are universal 189 4.5.2 Single qubit and CNOTgates are universal 191 4.5.3 A discrete set of universal operations 194
A Gentle Introduction Eleanor Rieffel and Wolfgang Polak
mmrc.amss.cas.cn2.1 The Quantum Mechanics of Photon Polarization 9 2.1.1 A Simple Experiment 10 2.1.2 A Quantum Explanation 11 2.2 Single Quantum Bits 13 2.3 Single-Qubit Measurement 16 2.4 A Quantum Key Distribution Protocol 18 2.5 The State Space of a Single-Qubit System 21 2.5.1 Relative Phases versus Global Phases 21
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