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  Variationsverfahren zur Untersuchung von Grundzustandseigenschaften des Ein-Band Hubbard-Modells

Eichhorn, J. (2001). Variationsverfahren zur Untersuchung von Grundzustandseigenschaften des Ein-Band Hubbard-Modells. Diploma Thesis, Technische Universität Dresden, Dresden, Germany.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-E282-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-AE60-B
Genre: Thesis

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 Creators:
Eichhorn, J1, Author              
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1External Organizations, ou_persistent22              

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 Abstract: Using different modifications of a new variational approach, statical groundstate properties of the one-band Hubbard model such as energy and staggered magnetisation are calculated. By taking into account additional fluctuations, the method ist gradually improved so that a very good description of the energy in one and two dimensions can be achieved. After a detailed discussion of the application in one dimension, extensions for two dimensions are introduced. By use of a modified version of the variational ansatz in particular a description of the quantum phase transition for the magnetisation should be possible.

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 Dates: 2001-05
 Publication Status: Published in print
 Pages: -
 Publishing info: Dresden, Germany : Technische Universität Dresden
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: 4735
 Degree: Diploma

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