Density-Matrix Renormalization - A New Numerical Method in Physics

Download or read book Density-Matrix Renormalization - A New Numerical Method in Physics written by Ingo Peschel and published by Lecture Notes in Physics. This book was released on 1999-06-21 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers the first comprehensive account of the new method of density matrix renormalization. Recent years have seen enormous progress in the numerical treatment of low-dimensional quantum systems. With this new technique, which selects a reduced set of basis states via density matrices, it has become possible to treat large systems with amazing accuracy. The method has been applied successfully to a variety of important one-dimensional problems such as spin chains, Kondo models, and correlated electron systems. Extensions to other systems and higher dimensions are currently being developed. The contributions to this book are written by leading experts in the field. The two parts contain an introduction to the subject and a review of physical applications. As a combination of advanced textbook and guide to current research the book should become a standard source for everyone interested in the topic.