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Type: 
Journal
Description: 
We review here some general properties of antiferromagnetic Heisenberg spin chains, emphasizing and discussing the rôle of hidden symmetries in the classification of the various phases of the models. We present also some recent results that have been obtained with a combined use of Conformal Field Theory and of numerical Density Matrix Renormalization Group techniques.
Publisher: 
Springer Netherlands
Publication date: 
1 Jan 2005
Authors: 
Biblio References: 
Pages: 145-173
Origin: 
Symmetries in Science XI