Quantum computers : theory and algorithms
著者
書誌事項
Quantum computers : theory and algorithms
Springer, c2023
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
This book presents various theories and algorithms to create a quantum computer. The concept of the classical and quantum computers, and the concept of circuits and gates are reviewed. The example of the Deutsch and the Deutsch-Josca algorithm is discussed to illustrate some key features of quantum computing. The Grover algorithm, considered to be of major milestone of the subject, is discussed in detail to exemplify the techniques used in computer algorithms. The role of quantum superposition (also called quantum parallelism) and of quantum entanglement is discussed in order to understand the key advantages of a quantum over a classical computer.
目次
1 Introduction
2 Classical Computer
2.1 Binary Representation
3 Quantum Computer
3.1 Qubit
4 Classical Gates and Circuits
5 Quantum Gates and Circuits
5.1 Hilbert space
5.2 Measurement
6 Deutsch Algorithm
7 Grover Algorithm
7.1 Grover algorithm: two-qubit
7.2 Grover algorithm: n-qubit
7.3 Grover diffusion and rotation gate G
7.4 Single Recursion: Two qubit
8 Deutsch-Josza Algorithm
9 Simon's Algorithm
9.1 Quantum Algorithm
9.2 An Illustrative Example
10 Quantum Fourier Transform (QFT) 51
10.1 Quantum circuit of QFT
11 Shor
11.1 Introduction
11.2 Understanding the classical algorithm
11.3 Quantum algorithm
12 Option Pricing
12.1 Quantum Algorithm for Option Pricing
12.2 Quadratic Improvement
12.3 Estimation of Phase
12.4 Call Option
13 Solving Linear Equations
13.1 Introduction
13.2 Harrow-Hassidim-Lloyd Algorithm
13.3 Specific Example
13.4 Other applications
14 Quantum-Classical Hybrid Algorithms
14.1 Why bother?
14.2 Overlap of Wavefunctions
14.3 Variational Quantum Eigensolvers
15 Quantum Error Correction
15.1 Introduction
15.2 Simple quantum errors
15.3 Kraus Operators
15.4 Nine-qubit Code
15.5 General properties of quantum error-correcting codes
15.6 Classical Linear Codes
15.7 CSS Codes
16 Efficiency of a Quantum Computer
16.1 So where does quantum computation take place?
16.2 Conclusions
16.3 Acknowledgements
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