Quantum Communication, Computing, and Measurement 3 / Edition 1

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Overview

This volume contains contributions based on the lectures delivered and posters presented at the Fifth International Conference on Quantum Communication, Measurement and Computing (QCM&C-Y2K). This Conference is the fifth of a successful series hosted this time in Italy, was held in Capri, 3-7 July, 2000. The conference was attended by more than 200 participants from all over the world. There was also a high level of participation from graduate students, who greatly benefited from the opportunity to attend world-class conferences. The Conference Hall was hosted in La Residenza Hotel in Capri, where part of p- ticipants where housed, while others where housed in various cozy nearby - tels. All enjoyed the pleasant atmosphere offered by the island of Capri. There were 59 invited lectures given as oral presentations of 30 minutes and 94 poster papers. The major topics covered at the Conference where new experimental and theoretical results in quantum information. They were divided in five parts; i) Quantum Information and Communication, ii) Quantum Measurement, - coherence, and Tomography, iii) Quantum Computing, iv) Cryptography, v) Entanglement and Teleportation. We were lucky in that almost all major - perimental groups in the world working in this area were represented, as were the major theoreticians. There was very active audience participation. A n- ber of graduate students and post-docs were able to present their contributions in four after dinner poster sessions.

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Product Details

  • ISBN-13: 9781441933645
  • Publisher: Springer US
  • Publication date: 11/30/2013
  • Edition description: Softcover reprint of hardcover 1st ed. 2001
  • Edition number: 1
  • Pages: 476
  • Product dimensions: 7.00 (w) x 10.00 (h) x 1.02 (d)

Table of Contents

Pt. I Quantum Information and Quantum Communication
1 Additivity/Multiplicativity Problems for Quantum Communication Channels 3
2 Universal Copying of Coherent States: A Gaussian Cloning Machine 11
3 Quantum Random Coding Exponent of a Symmetric State Alphabet 15
4 Information and Distance in Hilbert Space 19
5 Superadditivity with Mixed Letter States 27
6 Quantum State Recognition 31
7 Superadditivity in Capacity of Quantum Channel by Classical Pseudo-Cyclic Codes 35
8 Property of Mutual Information for M-ary Quantum-State Signals 39
9 Performances of Binary Block Codes Used on Binary Classical-Quantum Channels 43
Pt. II Quantum Measurement, Decoherence, and Tomography
10 Entropy and Information Gain in Quantum Continual Measurements 49
11 Experimental Quantum State Discrimination 59
12 Spontaneous Intrinsic Decoherence in Rabi Oscillations Experiments 69
13 Quantum Tomography, Teleportation, and Cloning 79
14 Decoherence versus the Idealization of Microsystems as Correlation Carriers between Macrosystems 87
15 Quantum Measurement, Information, and Completely Positive Maps 97
16 On the Number of Elements Needed in a POVM Attaining the Accessible Information 107
17 Einselection and Decoherence from an Information Theory Perspective 115
18 Reconstructing the Discrete Wigner Function through Complementary Measurements 127
19 Statistical Noise in Measuring Correlated Photon Beams 131
20 Reconstruction Technique for a Trapped Electron 135
21 Quantum Mechanics without Statistical Postulates 139
22 Quantum Retrodiction 143
23 Quantum-Tomography Method in Information Processing 147
24 Quantum Measurement Problem and State Dual Representations 151
25 Homodyne Characterization of Active Optical Media 155
26 Quantum Cloning Optimal for Joint Measurements 159
27 How Many Projections Are Needed in Quantum Tomography of Spin States? 163
Pt. III Quantum Computing
28 The Representation of Numbers by States in Quantum Mechanics 171
29 Towards Quantum Computation with Trapped Calcium Ions 179
30 Physical Limits to Computation 189
31 Realising Quantum Computing: Physical Systems and Robustness 199
32 Information Analysis of Quantum Gates for Simulation of Quantum Algorithms on Classical Computers 207
33 Quantum Probabilistic Subroutines and Problems in Number Theory 215
34 Theory of the Quantum Speed Up 219
35 Quantum Gates Using Motional States in an Optical Lattice 227
36 Quantum Error-Correcting Code for Burst Error 231
37 Non-Dissipative Decoherence in Ion-Trap Quantum Computers 235
38 Optical Qubit Using Linear Elements 239
39 Atom Chips 243
40 Decoherence and Fidelity of Single Qubit Operations in a Solid State Quantum Computer 247
Pt. IV Cryptography
41 Long Distance Entangled State Quantum Key Distribution 253
42 Bunching and Antibunching from Single NV Color Centers in Diamond 261
43 Violation of Locality and Self-Checking Source: A Brief Account 269
44 The Unconditional Security of Quantum Key Distribution 277
45 Anonymous-Key Quantum Cryptography and Unconditionally Secure Quantum Bit Commitment 285
46 Quantum Key Distribution Using Multilevel Encoding 295
47 Authority-Based User Authentication and Quantum Key Distribution 299
48 Improvement of Key Rate for Yuen-Kim Cryptoscheme 303
49 Stable Solid-State Source of Single Photons 307
Pt. V Entanglement and Teleportation
50 Non-Locality and Quantum Theory: New Experimental Evidence 313
51 On Entangled Quantum Capacity 325
52 Control of Squeezed Light Pulse Spectrum in the Kerr Medium with an Inertial Nonlinearity 335
53 Macroscopic Quantum Superposition by Amplification of Entangled States 343
54 Quantum Teleportation with Atomic Ensembles and Coherent Light 351
55 Entangled State Based on Nonorthogonal State 359
56 Long-Distance High-Fidelity Teleportation Using Singlet States 367
57 Quantum Teleportation with Complete Bell State Measurement 375
58 Complete Quantum Teleportation with a Crossed-Kerr Nonlinearity 383
59 Quantum Lithography 391
60 Experimental Test of Local Realism Using Non-Maximally Entangled States 399
61 New Schemes for Manipulating Quantum States with a Kerr Cell 403
62 Local and Nonlocal Properties of Werner States 407
63 Maximally Entangled Mixed States in Two Qubits 411
64 Engineering Bell-Like States of Two High-Q Cavity Fields 415
65 Nondissipative Decoherence and Entanglement in the Dynamics of a Trapped Ion 419
66 Entanglement Manipulation and Concentration in Mixed States 423
67 Ramsey Interferometry with a Single Photon Field in Cavity QED 427
68 Entanglement Transformation at Dielectric Four-Port Devices 433
69 Quantum Noise in Polarization Measurement and Polarization Entanglement 439
70 Bright EPR-Entangled Beams for Quantum Communication 443
71 Polarization in Quantum Optics: A New Formalism and Two Experiments 449
72 Spin Squeezing and Decoherence Limit in Ramsey Spectroscopy 453
73 Teleportation of Entanglement for Continuous Variables 457
74 Generation and Detection of Fock States of the Radiation Field 463
Index 475
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