Density-matrix algorithm for the calculation of dynamical properties of low-dimensional systems
Abstract
I extend the scope of the density-matrix renormalization-group technique developed by White to the calculation of dynamical correlation functions using the continuous fraction expansion of the Green's function. As an application and performance evaluation I calculate the spin dynamics of the one-dimensional S=1/2 Heisenberg chain.
- Publication:
-
Physical Review B
- Pub Date:
- October 1995
- DOI:
- 10.1103/PhysRevB.52.R9827
- arXiv:
- arXiv:cond-mat/9503094
- Bibcode:
- 1995PhRvB..52.9827H
- Keywords:
-
- 75.10.Jm;
- 75.40.Gb;
- 75.40.Mg;
- Quantized spin models;
- Dynamic properties;
- Numerical simulation studies;
- Condensed Matter
- E-Print:
- 4 pages + 4 figures in one Latex + 4 postscript files