Dynamics and Characterization of Composite Quantum Systems

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Springer, Oct 3, 2016 - Science - 347 pages
This thesis sheds new light on the fascinating properties of composite quantum systems.
Quantum systems of different sizes, ranging from small bipartite systems to large many-body ensembles, can be studied with the help of modern quantum optical experiments. These experiments make it possible to observe a broad variety of striking features, including nonclassical correlations, complex dynamics and quantum phase transitions. By adopting the complementary perspectives of quantum information theory, quantum chemistry and many-body theory, the thesis develops new methods for the efficient characterization and description of interacting, composite quantum systems.
 

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Contents

1 Introduction
1
2 Local Detection of Correlations in Composite Quantum Systems
69
Behavior of Correlated Quantum States
129
4 Quantum Phase Transition in a Family of Quantum Magnets
151
5 Multidimensional Nonlinear Spectroscopy of Controllable Quantum Systems
201
6 Open Quantum Systems of Identical Particles
257
7 Summary and Conclusions
311
Appendix A Derivation of the Bosonic Master Eq 6151
315
Appendix B Representation of DoubleCommutator Terms in a Larger Basis
331
Appendix C Transformation Properties of InteractionPicture Operators
334
Appendix Curriculum Vitae
344
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About the author (2016)

Manuel Gessner studied Physics at the University of Freiburg and the Universidad Complutense de Madrid, then did his PhD in Freiburg while part of his research was carried out during a stay at the University of California, Berkeley. He is now a post-doctoral researcher and Humboldt fellow at LENS in Florence.

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