arXiv:cond-mat/9810174 Abstract

arXiv:cond-mat/9810174Abstract References Reviews Resources

Density-matrix spectra for integrable models

Published 1998-10-15, updated 1998-11-19Version 2

The spectra which occur in numerical density-matrix renormalization group (DMRG) calculations for quantum chains can be obtained analytically for integrable models via corner transfer matrices. This is shown in detail for the transverse Ising chain and the uniaxial XXZ Heisenberg model and explains in particular their exponential character in these cases.

Comments: 14 pages, 7 figures, to appear in Ann. Physik

Journal: Ann. Physik (Leipzig) 8 (1999) 153

DOI: 10.1002/(SICI)1521-3889(199902)8:2<153::AID-ANDP153>3.0.CO

Categories: cond-mat.stat-mech

Keywords: integrable models, density-matrix spectra, uniaxial xxz heisenberg model, numerical density-matrix renormalization group, corner transfer matrices

Tags: journal article

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