Decoherence, entanglement and information protection in complex quantum systems : [proceedings of the NATO Advanced Research Workshop on Decoherence, Entanglement and Information Protection in Complex Quantum Systems, Les Houches, France, 26-30 April 2004

this Book Is A Collection Of Articles On The Contemporary Status Of Quantum Mechanics, Dedicated To The Fundamental Issues Of Entanglement, Decoherence, Irreversibility, Information Processing, And Control Of Quantum Evolution, With A View Of Possible Applications. It Has Multidisciplinary Character And Is Addressed At A Broad Readership In Physics, Computer Science, Chemistry, And Electrical Engineering. It Is Written By The World-leading Experts In Pertinent Fields Such As Quantum Computing, Atomic, Molecular And Optical Physics, Condensed Matter Physics, And Statistical Physics. Editorial Article....Pages 1-12 Quantum Ensembles and Quantum Informatics....Pages 15-16 Entanglement in Quantum Information Processing....Pages 17-26 Easy Control Over Fermionic Computations....Pages 27-32 Multiatom and Multiphoton Entanglement....Pages 35-39 On the Advanced Wave Model of Parametric Down-Conversion....Pages 41-48 Quantum Logics Based on Four-Photon Entanglement....Pages 49-62 Towards Quantum Control of Light: Shaping Quantum Pulses of Light via Coherent Atomic Memory....Pages 63-76 Deterministic Entanglement of Single Photons via Coherently Driven Atoms....Pages 77-90 Selective Control of High-Order Atomic Coherences....Pages 91-104 Strong Entanglement of Bright Light Beams in Controlled Quantum Systems....Pages 105-126 Adiabatic and Nonadiabatic Protection from Decoherence....Pages 129-136 Coherence Protection by the Quantum Zeno Effect....Pages 137-174 Possible Implementation of Topologically Protected Qubits by a Novel Class of Josephson Junction Arrays....Pages 175-200 Coherence Protection Near Energy Gaps....Pages 201-222 Zeno and Anti-Zeno Dynamics....Pages 223-232 Non-Markovian Decay and Decoherence in Open Quantum Systems....Pages 235-238 The Varieties of Master Equations....Pages 239-280 Quantum Dynamics Effected by Repeated Measurements....Pages 281-306 Non-Exponential Motional Damping of Impurity Atoms in Bose-Einstein Condensates....Pages 307-314 Internal-Translational Entanglement and Interference in Atoms and Molecules....Pages 317-324 Atom-Mesoscopic Field Entanglement....Pages 325-328 Coherence and Decoherence Experiments with Fullerenes....Pages 329-352 Distant Entanglement of Macroscopic Gas Samples....Pages 353-372 Position and Momentum Entanglement of Dipole-Dipole Interacting Atoms in Optical Lattices....Pages 373-390 Investigation of Autler-Townes Effect in Sodium Dimers....Pages 391-394 Transition Steering via Space-Dependent Coupling....Pages 395-410 Coherence and Decoherence in Rydberg Gases....Pages 411-436 Schrödinger’s Cat States of Protons in Condensed Matter....Pages 439-444 Anomalous Neutron Inelastic Cross Sections at eV Energy Transfers....Pages 445-468 Quantum Entanglement and Decoherence Due to Coupling of Protons to Electronic Environment....Pages 469-482 Attosecond Effects in Scattering of Neutrons and Electrons from Protons....Pages 483-498 Macroscopic Quantum Entanglement in the KHCO 3 Crystal....Pages 499-528 Probing Short-Lived Entanglement with Inelastic X-ray Scattering....Pages 529-534 Proton-Proton Correlations in Condensed Matter....Pages 535-548 Is Fermi’s Golden Rule Always True for Compton Scattering?....Pages 549-554 On Correlation Approach to Scattering in the Decoherence Timescale....Pages 555-562 Coherence and Entanglement in Mesoscopic Systems....Pages 565-572 Probe Scattering by Fluctuating Multi-Atom Ensembles in Optical Lattices....Pages 573-580 Bose-Einstein Condensates with Laser-Induced Dipole-Dipole Interactions....Pages 581-588 Atom Optics with Bose-Einstein Condensation Using Optical Potentials....Pages 589-600 A Mesoscopic Mach-Zehnder Interferometer....Pages 601-604 Coherent Transport by Adiabatic Pumping....Pages 605-614 Zeno and Anti-Zeno Effects in Driven Josephson Junctions: Control of Macroscopic Quantum Tunneling....Pages 615-622 Employment of Submicron YBA 2 CU 3 O 7-x Grain Boundary Junctions for the Fabrication of “ Quiet” Superconducting Flux-Qubits....Pages 623-633 Broken Symmetry and Coherence of Molecular Vibrations in Tunnel Transitions....Pages 635-676