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This book is designed to serve as a reference book for researchers. The book is primarily deals with the introductory concept of Quantum Cryptography. The various protocols used in the Quantum Key Distribution (QKD) is also discussed in this book. The Salient features of this book: - Concept of Quantum Cryptography - Protocols used in Quantum Key Distribution (QKD) - Security Analysis of QKD Protocols - BB84 Protocol and its Implementation

Quantum theory. --- Quantum computers. --- Théorie quantique. --- Informatique quantique.

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Quantum mechanics. Quantumfield theory --- Computer architecture. Operating systems --- 530.145 --- Quantum computers --- Computers --- Quantum theory --- Quantum computers. --- 530.145 Quantum theory --- Electronic digital computers --- Informatique quantique --- Ordinateurs --- Design and construction --- Conception et construction --- Informatique quantique. --- Conception et construction.

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In the 1990's it was realized that quantum physics has some spectacular applications in computer science. This book is a concise introduction to quantum computation, developing the basic elements of this new branch of computational theory without assuming any background in physics. It begins with an introduction to the quantum theory from a computer-science perspective. It illustrates the quantum-computational approach with several elementary examples of quantum speed-up, before moving to the major applications: Shor's factoring algorithm, Grover's search algorithm, and quantum error correction. The book is intended primarily for computer scientists who know nothing about quantum theory, but will also be of interest to physicists who want to learn the theory of quantum computation, and philosophers of science interested in quantum foundational issues. It evolved during six years of teaching the subject to undergraduates and graduate students in computer science, mathematics, engineering, and physics, at Cornell University.

Quantum computers. --- Quantum theory. --- Informatique quantique. --- Théorie quantique --- Quantum mechanics. Quantumfield theory --- Computer science --- Quantum computers --- Quantum theory --- Ordinateurs quantiques --- Théorie quantique

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"This book offers an accessible and engaging introduction to quantum cryptography, assuming no prior knowledge in quantum computing. Essential background theory and mathematical techniques are introduced and applied in the analysis and design of quantum cryptographic protocols. The title explores several important applications such as quantum key distribution, quantum money, and delegated quantum computation, while also serving as a self-contained introduction to the field of quantum computing. With frequent illustrations and simple examples relevant to quantum cryptography, this title focuses on building intuition and challenges readers to understand the basis of cryptographic security. Frequent worked examples and mid-chapter exercises allow readers to extend their understanding, and in-text quizzes, end-of-chapter homework problems, and recommended further reading reinforce and broaden understanding. Online resources available to instructors include interactive computational problems in Julia, videos, lecture slides, and a fully worked solutions manual."

Quantum cryptography --- Quantum computing --- Cryptographie quantique --- Informatique quantique --- Mathematics. --- Security measures. --- Mathématiques. --- Mesures de sûreté. --- Mathématiques. --- Mesures de sûreté.

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Quantum mechanics is a highly successful yet a mysterious theory. Quantum Mechanics for Beginners provides an introduction of this fascinating subject to someone with only a high school background in physics and mathematics, This book, except the last chapter on Scho ̈dinger equation, is entirely algebra-based. A major strength of this book is that, in addition to the foundation of quantum mechanics, it provides an introduction to the fields of quantum communication and quantum computing. The topics covered include wave-particle duality, Heisenberg uncertainty relation, Bohr's principle of complementarity, quantum superposition and entanglement, Scho ̈dinger's cat, Einstein-Podolsky-Rosen paradox, Bell theorem, quantum no-cloning theorem and quantum copying, quantum eraser and delayed choice, quantum teleportation, quantum key distribution protocols such as BB-84 and B-92, counterfactual communication, quantum money, quantum Fourier transform, quantum computing protocols including Shor and Grover algorithms, quantum dense coding, and quantum tunneling. All these topics and more are explained fully but using only elementary mathematics. Each chapter is followed by a short list of references and some exercises. This book is meant for an advanced high school student and a beginning college student and can be used as a text for a one semester course at the Freshman level. However it can also be a useful and accessible book for those who are not familiar but want to learn some of the fascinating recent and ongoing developments in areas related to the foundations of quantum mechanics and its applications to areas such as quantum communication and quantum computing.

530.145 --- 530.145 Quantum theory --- Quantum theory --- Quantum theory. --- Quantum computers. --- Théorie quantique. --- Théorie de l'information quantique. --- Informatique quantique. --- Théorie quantique. --- Théorie de l'information quantique.