Explicit Exchange Interaction and Decoherence Dynamics in One-Dimensional Quantum Systems

In this thesis, we investigate two aspects of one-dimensional interacting quantum systems. The first one is the effect of explicit antiferromagnetic exchange interactions on the quantum phase transitions of a one-dimensional itinerant electron system. The second one is the decoherence of a qubit...

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Bibliographic Details
Main Author: Huang, Xiaoxuan
Contributors: Noack, Reinhard (Prof. Dr.) (Thesis advisor)
Format: Dissertation
Language:English
Published: Philipps-Universität Marburg 2011
Physik
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Online Access:PDF Full Text
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Summary:In this thesis, we investigate two aspects of one-dimensional interacting quantum systems. The first one is the effect of explicit antiferromagnetic exchange interactions on the quantum phase transitions of a one-dimensional itinerant electron system. The second one is the decoherence of a qubit coupled to a one-dimensional quantum spin system.
DOI:https://doi.org/10.17192/z2011.0113