Item type:Doctoral Thesis, Open Access

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

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2011-06-28

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Philipps-Universität Marburg
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Abstract

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.

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Created: 2011Issued: 2011-06-28Updated: 2011-08-08
DOI
https://doi.org/10.17192/z2011.0113
Faculty
Fachbereich Physik
Publisher
Philipps-Universität Marburg
Language
eng
Data types
DoctoralThesis
Keywords
Metal-insulator transitions and other electronic transitionsQuantenphasenübergangNon-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systemsDensity matrix renormalization groupStrongly correlated systemsCritical point phenomenaStark korrelierte SystemeDichtematrixrenormierungsgruppeLattice fermion models (Hubbard model, etc.)Decoherence; open systems; quantum statistical methods (see also 03.67.Pp in quantum information; for decoherence in Bose-Einstein condensates, see 03.75.Gg)Quantum phase transitionsNonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.)DekohärenzDecoherenceLattice theory and statistics (Ising, Potts, etc.) (see also 64.60.Cn Order-disorder transformations and statistical mechanics of model systems and 75.10.Hk Classical spin models)Quantum computation
DFG-subjects
Starke KopplungQuantenphasenübergangKohärenzDichtematrix
DDC-Numbers
530
License
https://rightsstatements.org/vocab/InC-NC/1.0/
URI
https://open.uni-marburg.de/handle/10.17192/z2011.0113
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Huang, Xiaoxuan: Explicit Exchange Interaction and Decoherence Dynamics in One-Dimensional Quantum Systems. : Philipps-Universität Marburg 2011-06-28. DOI: https://doi.org/10.17192/z2011.0113.

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