![]() Quantum Bits and Quantum Secrets: How Quantum Physics is revolutionizing Codes and Computers
ISBN: 978-3-527-40710-1
Paperback
189 pages
April 2008
US $75.00
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2 The Colors of the Rainbow.
A Prelude.
2.1 The Early Beginnings.
2.2 How Fast is Light?
2.3 Particle or Wave?
2.4 Ripples on a Lake.
2.5 A Spark Flies.
2.6 In Search of the Ether.
2.7 Enter Einstein.
3 Light, Waves and Oscillations.
Some Useful Facts.
3.1 Wavelength, Phase and Interference.
3.2 Coherence.
3.3 Polarization.
4 Nature’s Currency.
The Story of the Quantum.
4.1 An act of Desperation.
4.2 Photons Galore.
4.3 Uncertainty.
4.4 Have You Ever Seen an Atom?
4.5 A Question of Stability.
5 Surprising Discoveries.
A Glimpse at Quantum Mechanics.
5.1 Young Again.
5.2 Which Way to the Screen?
5.3 Distant Relations.
6 When Alice Met Bob.
The Principles of Quantum Cryptography.
6.1 A History of Secrets.
6.2 Zeroes and Ones.
6.3 One-time Pads.
6.4 Secret Photons.
6.5 An Element of Randomness.
6.6 Sifting Keys.
6.7 The BB84 Protocol.
6.8 No Cloning, Please.
6.9 Noisy Business.
6.10 Growing Secrecy.
6.11 Ekert’s Idea.
6.12 Real-world Quantum Cryptography.
7 The Logic of Superpositions.
How Quantum Computing Works.
7.1 Logic Gates.
7.2 The Basic Idea.
7.3 Reversibility.
7.4 The CNOT Gate.
7.5 Something New.
7.6 A Magic Test.
7.7 Balanced and Unbalanced.
7.8 One Step Closer . . . .
8 Shor’s Revolution.
An Introduction to Quantum Algorithms.
8.1 Grover’s Database Search.
8.2 How Fast?
8.3 Shor’s Factorization Algorithm.
8.3.1 Slow Calculations.
8.3.2 A Nice Trick.
8.3.3 Finding the Period.
8.3.4 The RSA Code.
9 Promising Prototypes.
How Quantum Computers Might be Built.
9.1 Moore’s End.
9.2 The DiVincenzo Criteria.
9.3 Qubits in Different Physical Systems.
9.3.1 Ions in Electric Traps.
9.3.2 Optical Lattices.
9.3.3 Superconducting Qubits.
9.3.4 Electrons in Quantum Dots.
9.3.5 Nuclear Magnetic Resonance.
9.3.6 Photonic Quantum Computers.
10 Sensitive States.
Why Quantum Error Correction is Important.
10.1 Classical Error Correction.
10.2 A Simple Case.
11 Trying the Impossible.
More Quantum Tricks.
11.1 Teleportation.
11.2 Dense Coding.
12 Dream or Reality?
The Past, Present and Future of Quantum Information.
12.1 The Past.
12.1.1 Feynman’s Input.
12.2 The Present.
12.3 The ARDA Roadmap.
12.4 Quantum Simulators.
12.5 Commercial Systems.
12.6 The Future.
Internet Resources.
Further Reading.
Glossary.
Bibliography.
Index.
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