E-Book, Englisch, Band 36, 312 Seiten
Sergienko / Adachi / Pascazio Quantum Communication and Quantum Networking
1. Auflage 2010
ISBN: 978-3-642-11731-2
Verlag: Springer
Format: PDF
Kopierschutz: 1 - PDF Watermark
First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers
E-Book, Englisch, Band 36, 312 Seiten
ISBN: 978-3-642-11731-2
Verlag: Springer
Format: PDF
Kopierschutz: 1 - PDF Watermark
This book constitutes the proceedings of the First International Conference on Quantum Communication and Quantum Networking, QuantumCom 2009, held in Naples, Italy, in October 2009.§The 38 full papers were selected from numerous submissions. This conference has been devoted to the discussion of new challenges in quantum communication and quantum networking that extends from the nanoscale devices to global satellite communication networks. It placed particular emphasis on basic quantum science effects and on emerging technological solutions leading to practical applications in the communication industry, culminating with a special section on Hybrid Information Processing.
Autoren/Hrsg.
Weitere Infos & Material
1;Preface;5
2;Organization;7
3;Table of Contents;9
4;QuantumComm 2009;9
4.1;Session 1;9
4.1.1;Tailoring the Spatio-temporal Bandwidth of Biphotons via the Non-factorable Structure of Entanglement;13
4.1.1.1;Introduction;13
4.1.1.2;Type I Parametric Down Conversion;14
4.1.1.3;Type II Parametric Down Conversion;21
4.1.1.4;Conclusions;26
4.1.1.5;References;27
4.1.2;Entanglement Generation by a Three-Dimensional Qubit Scattering: Concurrence vs. Path (In)Distinguishability;29
4.1.2.1;Introduction;29
4.1.2.2;Setup, Scattering, and Concurrence;30
4.1.2.3;Entanglement and Path (In)Distinguishability;32
4.1.2.4;Full-Order Contributions and Renormalization;34
4.1.2.5;Summary;35
4.1.2.6;References;37
4.2;Session 2;9
4.2.1;Multipartite Entangled Codewords for Gaussian Channels with Additive Noise and Memory;38
4.2.1.1;Introduction;38
4.2.1.2;The Model;39
4.2.1.3;Block Encoding/Decoding Schemes;40
4.2.1.4;Optimal Transmission Rates;42
4.2.1.5;Discussion;44
4.2.1.6;Conclusion;45
4.2.1.7;References;45
4.2.2;High-Speed Single-Photon Detection Using 2-GHz Sinusoidally Gated InGaAs/InP Avalanche Photodiode;46
4.2.2.1;Introduction;46
4.2.2.2;Sinusoidally Gated InGaAs/InP Avalanche Photodiode;47
4.2.2.3;Detector Performance;48
4.2.2.4;Conclusion;49
4.2.2.5;References;50
4.3;Session 3;9
4.3.1;Local Transformation of Two EPR Photon Pairs into a Three-Photon W State Using a Polarization Dependent Beamsplitter;51
4.3.1.1;Introduction;51
4.3.1.2;Theoretical Analysis;52
4.3.1.2.1;Optimal Method;52
4.3.1.2.2;Experimental Method;54
4.3.1.3;Experimental Demonstration;55
4.3.1.4;Conclusion;56
4.3.1.5;References;57
4.3.2;Entanglement Degree Characterization of Spontaneous Parametric-Down Conversion Biphotons in Frequency Domain;58
4.3.2.1;Introduction;58
4.3.2.1.1;Aim of the Paper;59
4.3.2.2;Theoretical Considerations;59
4.3.2.3;Experimental Set Up and Results;61
4.3.2.3.1;Measure with a 10 mm LiIO3 Crystal;63
4.3.2.3.2;Measure with a 5 mm LiIO3 Crystal;65
4.3.2.4;Conclusions and Future Plans;66
4.3.2.5;References;66
4.4;Session 4;9
4.4.1;Matter-Matter Entanglement for Quantum Communication;68
4.4.1.1;References;69
4.4.2;Manipulating Frequency Entangled Photons;70
4.4.2.1;Introduction;70
4.4.2.2;Experimental Setup;71
4.4.2.3;Theoretical Modelisation and Experimental Results;73
4.4.2.4;TowardsBellTests;74
4.4.2.5;Conclusion;77
4.4.2.6;References;77
4.4.3;Ground-State Entanglement Gives Birth to Quantum Energy Teleportation;78
4.4.3.1;Introduction;78
4.4.3.2;Ground-State Entanglement and Negative Energy Density;79
4.4.3.3;QET Protocol;80
4.4.3.4;Breaking Ground-State Entanglement by Measurements;82
4.4.3.5;QET for Other Systems;84
4.4.3.6;References;85
4.4.4;Network Games with Quantum Strategies;86
4.4.4.1;Introduction;86
4.4.4.2;EWL Protocol;87
4.4.4.3;Local Formation Games;87
4.4.4.3.1;Classical and Quantum Version;88
4.4.4.4;Global Formation Games;89
4.4.4.5;Congestion Games;91
4.4.4.5.1;Quantum Version of Pigou's Example;91
4.4.4.6;Conclusions;92
4.4.4.7;References;93
4.5;Session 5;10
4.5.1;Optical Free-Space Communication on Earth and in Space Regarding Quantum Cryptography Aspects;94
4.5.1.1;Introduction;94
4.5.1.2;High Altitude Platform-to-Ground Links;95
4.5.1.3;Aircraft-to-Ground Links;97
4.5.1.4;Satellite-to-Ground Links;99
4.5.1.5;Further Developments;103
4.5.1.6;Applicability of Quantum Cryptography to StandardFSO Links;104
4.5.1.7;Conclusions;106
4.5.1.8;References;106
4.5.2;Feasibility Analysis for Quantum Key Distribution between a LEO Satellite and Earth;108
4.5.2.1;References;111
4.5.3;Enhanced Free Space Beam Capture by Improved Optical Tapers;112
4.5.3.1;Introduction;112
4.5.3.1.1;Noise and Attenuation;113
4.5.3.2;Homodyne Detection;113
4.5.3.2.1;Atmospheric Fluctuations;113
4.5.3.3;Improved Optical Tapers;114
4.5.3.3.1;Taper Geometry;115
4.5.3.3.2;Numerical Simulation;116
4.5.3.4;Outlook;117
4.5.3.5;References;118
4.5.4;Entanglement Based Quantum Key Distribution Using a Bright Sagnac Entangled Photon Source;120
4.5.4.1;Introduction;120
4.5.4.2;Experimental Setup;121
4.5.4.3;Results;124
4.5.4.4;Discussion;125
4.5.4.5;Conclusions;126
4.5.4.6;References;127
4.5.5;Solutions for Redundancy-Free Error Correction in Quantum Channel;129
4.5.5.1;Introduction;129
4.5.5.2;General Quantum Channel;130
4.5.5.3;Redundancy-Free Channel;131
4.5.5.4;Generalized Redundancy-Free Channel;133
4.5.5.4.1;The Redundancy-Free Error Correction;133
4.5.5.4.2;Probabilistic Quantum Error Correction;134
4.5.5.5;Conclusions;135
4.5.5.6;References;136
4.6;Session 6;10
4.6.1;Two-Way Quantum Communication in a Single Optical Fiber with Active Polarization Compensation;137
4.6.1.1;Introduction;137
4.6.1.2;Experimental Theory and Setup;138
4.6.1.3;Experimental Results;140
4.6.1.4;References;142
4.6.2;Passive Decoy State Quantum Key Distribution;144
4.6.2.1;Introduction;144
4.6.2.2;Passive Decoy State QKD Setup;145
4.6.2.3;Lower Bound on the Secret Key Rate;148
4.6.2.4;Evaluation;150
4.6.2.5;Conclusion;151
4.6.2.6;References;151
4.6.3;QKD in Standard Optical Telecommunications Networks;154
4.6.3.1;Introduction and Testbeds;154
4.6.3.2;Results;156
4.6.3.3;Conclusion;159
4.6.3.4;References;160
4.7;Session 7;11
4.7.1;Properties of Cascade Switch Superconducting Nanowire Single Photon Detectors;162
4.7.1.1;Introduction;162
4.7.1.2;The Cascade Switch SNSPD;163
4.7.1.3;Optical Experiments with Parallel SNSPD;164
4.7.1.4;Parallel SNSPD Latching;166
4.7.1.5;References;168
4.7.2;Nano-Optical Studies of Superconducting Nanowire Single Photon Detectors;170
4.7.2.1;Introduction;170
4.7.2.2;Photoresponse Mapping;171
4.7.2.3;Polarisation Dependence;175
4.7.2.4;Conclusion and Outlook;176
4.7.2.5;References;177
4.8;Session 8;11
4.8.1;Examples of Quantum Dynamics in Optomechanical Systems;179
4.8.1.1;Introduction;179
4.8.1.2;Quantum Nonlinear Dynamics in Optomechanical Systems;180
4.8.1.2.1;The Model;180
4.8.1.2.2;Classical Dynamics;181
4.8.1.2.3;The Quantum Parameter;182
4.8.1.2.4;Quantum Dynamics: Master Equation;184
4.8.1.2.5;Langevin Equations;185
4.8.1.3;Dynamical Interference in the ``Photon Shuttle'';186
4.8.1.3.1;Model;187
4.8.1.3.2;Physical Picture: Multiphonon Transitions;188
4.8.1.3.3;Behaviour of the Optical Transmission in the Driven System;189
4.8.1.4;References;191
4.8.2;A 2D Electron Gas for Studies on Tunneling Dynamics and Charge Storage in Self-assembled Quantum Dots;192
4.8.2.1;References;200
5;Special Session on Hybrid Information Processing (HIP);11
5.1;Entanglement Purification with Hybrid Systems;201
5.1.1;Introduction;201
5.1.2;The Model;202
5.1.3;The Dynamics;204
5.1.4;Measurement;205
5.1.5;Entanglement Purification;208
5.1.6;Concluding Remarks;210
5.1.7;References;211
5.2;Few Atom Detection and Manipulation Using Optical Nanofibres;212
5.2.1;Introduction;212
5.2.2;Experimental Details and Results;213
5.2.2.1;Optical Nanofibres;213
5.2.2.2;Cold Atom Setup;214
5.2.2.2.1;Photon Coupling;216
5.2.2.2.2;Loading Time;217
5.2.2.2.3;Lifetime;218
5.2.2.3;Rubidium Vapour Cell Setup;219
5.2.3;Conclusion;220
5.2.4;References;220
5.3;An Error Model for the Cirac-Zoller cnot Gate;222
5.3.1;Decoherence and Quantum Computing by Ion Traps;222
5.3.2;The Cirac-Zoller cnot Gate;223
5.3.3;Imperfections in the Cirac-Zoller cnot Gate;224
5.3.3.1;The Hilbert Space;224
5.3.3.2;Imperfect Impulse Gates;225
5.3.3.3;Density Matrix Evolution and Kraus Operators;228
5.3.4;Conclusive Remarks;230
5.3.5;References;231
6;Poster Session;11
6.1;Fiber Coupled Single Photon Detector with Niobium Superconducting Nanowire;232
6.1.1;Introduction;232
6.1.2;Device Fabrication;233
6.1.3;Experiment Setup;233
6.1.4;Results;234
6.1.5;Conclusion;235
6.1.6;References;235
6.2;Superconducting Nanowire Single-Photon Detectors for Quantum Communication Applications;237
6.2.1;Introduction;237
6.2.2;Detector System Design and Construction;238
6.2.2.1;Detector Technology;238
6.2.2.2;Closed-Cycle Refrigerator;238
6.2.2.3;Optical Alignment;239
6.2.3;Practical Detector System Performance;240
6.2.3.1;System Detection Efficiency at 830nm, 1310nm and 1550nm;240
6.2.3.2;Polarization Dependence;241
6.2.3.3;Detector Timing Jitter;242
6.2.4;Conclusion and Outlook;243
6.2.5;References;243
6.3;Interferometric Technique for Density Matrix Reconstruction by On/Off Detectors;245
6.3.1;Introduction;245
6.3.2;Reconstruction Method;246
6.3.3;Experimental Setup;247
6.3.4;Experimental Results;249
6.3.5;Concluding Remarks;252
6.3.6;References;252
6.4;Simulating BB84 Protocol in Dephasing Qubit Channel;254
6.4.1;Introduction;254
6.4.2;Quanutm Capacity of Qubit Phase Damping Channel;255
6.4.3;Simulation with Classical Computer;257
6.4.3.1;Data Reconciliation;258
6.4.3.2;Privacy Amplification;259
6.4.4;Conclusions;259
6.4.5;References;259
6.5;Using Multi-particle Entanglement in Secure Communication Scenarios;261
6.5.1;Introduction;261
6.5.2;Quantum Telecommunication;262
6.5.2.1;Quantum Dialogue;263
6.5.2.2;Quantum Telephone;263
6.5.3;Quantum Finance (Quantum Auction);264
6.5.3.1;Quantum Sealed-Bid Auction;265
6.5.4;Quantum Voting;267
6.5.5;Conclusion;267
6.5.6;References;268
6.6;Subband Tunneling and Coulomb Effects in Coupled Quantum Wells;270
6.6.1;Introduction;270
6.6.2;Model;271
6.6.3;Results and Discussion;272
6.6.4;References;272
6.7;Generation of Non-Gaussian Quantum State in Telecommunication Band;273
6.7.1;Introduction;273
6.7.2;Experimental Setup;274
6.7.3;Experimental Results;275
6.7.4;Conclusion;277
6.7.5;References;277
7;Workshop on Quantum and Classical Information Security;12
7.1;Efficiency of the Eavesdropping in B92 QKD Protocol with a QCM;279
7.1.1; Introduction;279
7.1.2; Discrepancy and Mutual Information;281
7.1.3; Optimal QCM for the Eavesdropping;283
7.1.4; Efficiency of the Eavesdropping with Meridional QCM;284
7.1.5; Conclusions;285
7.1.6;References;286
7.2;Improvement of Lattice-Based Cryptography Using CRT;287
7.2.1;Introduction and Motivation;287
7.2.2;Lattice Theory and Lattice-Based Cryptography;288
7.2.2.1;Lattice-Based Cryptography;289
7.2.2.2;Drawbacks of Existing Schemes;289
7.2.2.3;Chinese Remainder Theorem;290
7.2.2.4;Improvement of GGH Using CRT;291
7.2.3;New Scheme;292
7.2.3.1;Key Generation;292
7.2.3.2;Encryption;293
7.2.3.3;Decryption;293
7.2.4;Implementation and Performance Analysis;293
7.2.5;References;294
7.3;The Case for Quantum Key Distribution;295
7.3.1;Introduction;295
7.3.2;A Brief Introduction to QKD;297
7.3.3;Who Needs Quantum Key Distribution?;298
7.3.4;The Security of QKD;299
7.3.5;Key Usage: Encryption;301
7.3.6;Authentication;302
7.3.6.1;Symmetric Key Authentication;302
7.3.6.2;Public Key Authentication;302
7.3.7;Limitations;304
7.3.8;QKD Networks;305
7.3.9;Conclusion;305
7.3.10;References;306
7.4;On QKD Industrialization;309
7.4.1;Introduction;309
7.4.2;References;313
7.5;CTES Factorization Algorithm;315
7.5.1;Introduction;315
7.5.2;Main Challenge in Factorization;315
7.5.3;New Factorization Algorithm by Exploiting the Periodicity of a CTES;316
7.5.4;Analogue Realization of a CTES with a Multi-path Interferometer and a Spectrometer;319
7.5.5;Conclusion;321
7.5.6;References;322
8;Author Index;323
