Quantum Communications And Cryptography

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Format: Hardcover
Pub. Date: 2005-11-14
Publisher(s): CRC Press
List Price: $175.00

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Summary

All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy. Quantum Communications and Cryptographyis the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes theengineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptographysupplies a springboard for further developments and breakthroughs in this rapidly growing area.

Table of Contents

Quantum Cryptographyp. 1
Quantum Communications with Optical Fibersp. 17
Advanced Quantum Communications Experiments with Entangled Photonsp. 45
The DARPA Quantum Networkp. 83
Experimental Cryptography Using Continuous Polarization Statesp. 103
Quantum Logic Using Linear Opticsp. 127
Practical Quantum Cryptography: Secrecy Capacity and Privacy Amplificationp. 145
Quantum State Sharingp. 163
Free-Space Quantum Cryptographyp. 187
Noise-Immune Quantum Key Distributionp. 211
Indexp. 225
Table of Contents provided by Ingram. All Rights Reserved.

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