Details
Quantum Networking
1. Aufl.
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139,99 € |
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| Verlag: | Wiley |
| Format: | EPUB |
| Veröffentl.: | 09.05.2014 |
| ISBN/EAN: | 9781118648933 |
| Sprache: | englisch |
| Anzahl Seiten: | 356 |
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Beschreibungen
<p>Quantum networks build on entanglement and quantum measurement to achieve tasks that are beyond the reach of classical systems. Using quantum effects, we can detect the presence of eavesdroppers, raise the sensitivity of scientific instruments such as telescopes, or teleport quantum data from one location to another. Long-distance entanglement can be used to execute important tasks such as Byzantine agreement and leader election in fewer rounds of communication than classical systems, improving the efficiency of operations that are critical in distributed systems.</p>
<p>Notations xiii</p> <p>Acknowledgements xv</p> <p>Introduction xix</p> <p><b>Chapter 1 Overview 1</b></p> <p>1.1 Introduction 2</p> <p>1.2 Quantum information 4</p> <p>1.3 Quantum repeaters 10</p> <p>1.4 Network architectures 15</p> <p>1.5 Conclusions 20</p> <p><b>Part 1 Fundamentals 23</b></p> <p><b>Chapter 2 Quantum Background 25</b></p> <p>2.1 Introduction 26</p> <p>2.2 Schrodinger's equation 28</p> <p>2.3 Qubits 29</p> <p>2.4 Manipulating qubits 41</p> <p>2.5 Bell pairs 47</p> <p>2.6 The no-cloning theorem 53</p> <p>2.7 Conclusion 54</p> <p><b>Chapter 3 Networking Background 55</b></p> <p>3.1 Concepts 56</p> <p>3.2 Challenges in scaling up networks 63</p> <p>3.3 Design patterns 65</p> <p>3.4 The Internet 75</p> <p>3.5 Conclusion 77</p> <p><b>Chapter 4 Teleportation 79</b></p> <p>4.1 The basic teleportation operation 79</p> <p>4.2 Experimental demonstration of teleportation 82</p> <p>4.3 State machines for teleportation 84</p> <p>4.4 Teleporting gates 86</p> <p>4.5 Conclusion 88</p> <p><b>Part 2 Applications 91</b></p> <p><b>Chapter 5 Quantum Key Distribution 93</b></p> <p>5.1 QKD and the purpose of cryptography 94</p> <p>5.2 BB84: single-photon QKD 97</p> <p>5.3 E91: entanglement-based protocol 100</p> <p>5.4 Using QKD 101</p> <p>5.5 Existing QKD networks 105</p> <p>5.6 Classical control protocols 109</p> <p>5.7 Conclusion 111</p> <p><b>Chapter 6 Distributed Digital Computation and Communication 113</b></p> <p>6.1 Useful distributed quantum states 114</p> <p>6.2 Coin flipping 118</p> <p>6.3 Leader election 119</p> <p>6.4 Quantum secret sharing 121</p> <p>6.5 Byzantine agreement 126</p> <p>6.6 Client-server and blind computation 128</p> <p>6.7 Conclusion 130</p> <p><b>Chapter 7 Entangled States as Reference Frames 131</b></p> <p>7.1 Qubits in the environment 131</p> <p>7.2 Distributed clock synchronization 135</p> <p>7.3 Very long baseline optical interferometry 141</p> <p>7.4 Conclusion 145</p> <p><b>Part 3 Lines of Repeaters 147</b></p> <p><b>Chapter 8 Physical Entanglement and Link-Layer Protocols 149</b></p> <p>8.1 Creating entanglement using light 149</p> <p>8.2 Memory and transceiver gubits 156</p> <p>8.3 Link structure 161</p> <p>8.4 State machines and protocol interactions 163</p> <p>8.5 Managing density matrices in distributed software 164</p> <p>8.6 Examples 169</p> <p>8.7 Conclusion 173</p> <p><b>Chapter 9 Purification 175</b></p> <p>9.1 Measurement revisited 175</p> <p>9.2 Basic purification 177</p> <p>9.3 Scheduling purification 185</p> <p>9.4 State machines and protocol interactions 187</p> <p>9.5 More complex purification protocols 190</p> <p>9.6 Experimental demonstrations 192</p> <p>9.7 Conclusion 193</p> <p><b>Chapter 10 Purfication and Entanglement Swapping-Based Repeaters 195</b></p> <p>10.1 Hardware architectures 195</p> <p>10.2 Getting from here to there 197</p> <p>10.3 Nested purification session architecture 203</p> <p>10.4 State machines and protocol interactions 206</p> <p>10.5 Putting it all together 208</p> <p>10.6 Considerations in the design of a simulator 215</p> <p>10.7 Conclusion 217</p> <p><b>Chapter 11 Quantum Error Correction-Based Repeaters 219</b></p> <p>11.1 Quantum error correction 220</p> <p>11.2 CSS repeaters 223</p> <p>11.3 Surface code repeaters 230</p> <p>11.4 Conclusion 235</p> <p><b>Chapter 12 Finessing the Key Limitations 237</b></p> <p>12.1 Quasi-asynchronous 238</p> <p>12.2 Memoryless 244</p> <p>12.3 Summary: comparing quantum communication approaches 247</p> <p>12.4 Conclusion 251</p> <p><b>Part 4 Networks of Repeaters 253</b></p> <p><b>Chapter 13 Resource Management and Multiplexing 255</b></p> <p>13.1 Simulated network and traffic 256</p> <p>13.2 Simulations 259</p> <p>13.3 Conclusion 263</p> <p><b>Chapter 14 Routing 265</b></p> <p>14.1 Introduction 265</p> <p>14.2 Difficulties: differences between quantum and classical networks 267</p> <p>14.3 Problems and solutions 268</p> <p>14.4 Simulation and results 270</p> <p>14.5 Conclusion 283</p> <p><b>Chapter 15 Quantum Recursive Network Architecture 285</b></p> <p>15.1 Review: network architecture 286</p> <p>15.2 Recursive quantum requests 288</p> <p>15.3 Implementing recursion in quantum networks 294</p> <p>15.4 Example 295</p> <p>15.5 Conclusion 298</p> <p><b>Chapter 16 Coda 301</b></p> <p>16.1 Future development 301</p> <p>16.2 Open problems 303</p> <p>16.3 Further readings for depth 304</p> <p>16.4 Further readings for breadth 305</p> <p>16.5 Final thoughts 307</p> <p>Bibliograpy 309</p> <p>Index 331</p>
<p><strong>Rodney van Meter</strong> is Associate Professor, Faculty of Environment and Information Studies, Keio University, Fujisawa, Japan.
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