LEADER 05518nam 2200721 a 450 001 9910144708103321 005 20170810191427.0 010 $a1-280-52086-8 010 $a9786610520862 010 $a3-527-60600-9 010 $a3-527-60608-4 035 $a(CKB)1000000000377381 035 $a(EBL)481705 035 $a(OCoLC)69157728 035 $a(SSID)ssj0000231314 035 $a(PQKBManifestationID)11175158 035 $a(PQKBTitleCode)TC0000231314 035 $a(PQKBWorkID)10198467 035 $a(PQKB)10340976 035 $a(SSID)ssj0000307489 035 $a(PQKBManifestationID)11263805 035 $a(PQKBTitleCode)TC0000307489 035 $a(PQKBWorkID)10244520 035 $a(PQKB)10917387 035 $a(MiAaPQ)EBC481705 035 $a(PPN)226207374 035 $a(EXLCZ)991000000000377381 100 $a20060807d2005 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aQuantum information processing$b[electronic resource] /$fedited by Thomas Beth, Gerd Leuchs 205 $a2nd rev. and enlarged ed. 210 $aWeinheim $cWiley-VCH$dc2005 215 $a1 online resource (473 p.) 300 $aDescription based upon print version of record. 311 $a3-527-40541-0 320 $aIncludes bibliographical references and index. 327 $aQuantum Information Processing 2., revised and enlarged Edition; Contents; Preface to the First Edition; Preface to the Second Edition; List of Contributors; 1 Algorithms for Quantum Systems - Quantum Algorithms; 1.1 Introduction; 1.2 Fast Quantum Signal Transforms; 1.3 Quantum Error-correcting Codes; 1.4 Efficient Decomposition of Quantum Operations into Given One-parameter Groups; 1.5 Simulation of Hamiltonians; References; 2 Quantum Information Processing and Error Correction with Jump Codes; 2.1 Introduction; 2.2 Invertible Quantum Operations and Error Correction 327 $a2.3 Quantum Error Correction by Jump Codes2.3.1 Spontaneous Decay and Quantum Trajectories; 2.3.2 Jump Codes; 2.4 Universal Quantum Gates in Code Spaces; 2.4.1 Universal Sets of Quantum Gates for Qudit-Systems; 2.4.2 Universal One-Qutrit Gates; 2.4.3 A Universal Entanglement Gate; 2.5 Summary and Outlook; References; 3 Computational Model for the One-Way Quantum Computer: Concepts and Summary; 3.1 Introduction; 3.2 The QC(C) as a Universal Simulator of Quantum Logic Networks; 3.3 Non-Network Character of the QC(C); 3.4 Computational Model; 3.5 Conclusion; References 327 $a4 Quantum Correlations as Basic Resource for Quantum Key Distribution4.1 Introduction; 4.2 Background of Classical Information Theoretic Security; 4.3 Link Between Classical and Quantum; 4.4 Searching for Effective Entanglement; 4.5 Verification Sets; 4.5.1 6-state Protocol; 4.5.2 4-state Protocol; 4.5.3 2-state Protocol; 4.6 Examples for Evaluation; 4.7 Realistic Experiments; 4.8 Conclusions; References; 5 Increasing the Size of NMR Quantum Computers; 5.1 Introduction; 5.2 Suitable Molecules; 5.3 Scaling Problem for Experiments Based on Pseudo-pure States; 5.4 Approaching Pure States 327 $a5.5 Scalable NMR Quantum Computing Based on the Thermal Density Operator5.6 Time-optimal Implementation of Quantum Gates; 5.7 Conclusion; References; 6 On Lossless Quantum Data Compression and Quantum Variable-length Codes; 6.1 Introduction; 6.2 Codes, Lengths, Kraft Inequality and von Neumann Entropy Bound; 6.2.1 The Codes; 6.2.2 Length Observable and Average Length of Codewords; 6.2.3 Kraft Inequality and von Neumann Entropy Bound; 6.2.4 Base Length; 6.3 Construct Long Codes from Variable-length Codes; 6.4 Lossless Quantum Data Compression, if the Decoder is Informed about the Base Lengths 327 $a6.5 Code Analysis Based on the Base Length6.6 Lossless Quantum Data Compression with a Classical Helper; 6.7 Lossless Quantum Data Compression for Mixed State Sources; 6.8 A Result on Tradeoff between Quantum and Classical Resources in Lossy Quantum Data Compression; References; 7 Entanglement Properties of Composite Quantum Systems; 7.1 Introduction; 7.2 Separability of Composite Quantum Systems; 7.2.1 The Separability Problem; 7.2.2 Results on The Separability Problem; 7.3 The Distillability Problem; 7.3.1 Results on the Distillability Problem 327 $a7.4 Witness Operators for the Detection of Entanglement 330 $aQuantum processing and communication is emerging as a challenging technique at the beginning of the new millennium. This is an up-to-date insight into the current research of quantum superposition, entanglement, and the quantum measurement process - the key ingredients of quantum information processing. The authors further address quantum protocols and algorithms. Complementary to similar programmes in other countries and at the European level, the German Research Foundation (DFG) started a focused research program on quantum information in 1999. The contributions - written by leading experts 606 $aQuantum computers 606 $aQuantum theory 606 $aInformation theory 615 0$aQuantum computers. 615 0$aQuantum theory. 615 0$aInformation theory. 676 $a004.1 701 $aBeth$b Thomas$f1949-$054469 701 $aLeuchs$b Gerd$0927305 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910144708103321 996 $aQuantum information processing$92221357 997 $aUNINA