Density-matrix spectra for integrable models

Details Density-matrix spectra for integrable models Density-matrix spectra for integrable models

1998-10-15

arxiv.org/abs/cond-mat/9810174v2

Ann. Physik (Leipzig) 8 (1999) 153

Physics

Condensed Matter

Statistical Mechanics

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

Scientific paper

10.1002/(SICI)1521-3889(199902)8

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.

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