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

Huang, Xiaoxuan

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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Chi tiết về thư mục
Tác giả chính:	Huang, Xiaoxuan
Tác giả khác:	Noack, Reinhard (Prof. Dr.) (Cố vấn luận án)
Định dạng:	Dissertation
Ngôn ngữ:	Tiếng Anh
Được phát hành:	Philipps-Universität Marburg 2011
Những chủ đề:	Metal-insulator transitions and other electronic transitions Quantum phase transitions Starke Kopplung Quantenphasenübergang Non-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systems Density matrix renormalization group Kohärenz Critical point phenomena Physik Lattice 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) Stark korrelierte Systeme Dekohärenz Nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.) Lattice 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) Dichtematrix Dichtematrixrenormierungsgruppe Strongly correlated systems Decoherence Quantum computation Physics
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Miêu tả
Tóm tắt:	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:	10.17192/z2011.0113

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

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