The recursion method applied to the T=0 dynamics of the 1D s=1/2 Heisenberg and XY models
- 15 November 1991
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 70 (10) , 6178-6180
- https://doi.org/10.1063/1.350036
Abstract
The frequency‐dependent spin autocorrelation functions for the 1D s=1/2 Heisenberg and XY models at zero temperature are determined by the recursion method. These applications further demonstrate the efficacy of a new calculational scheme developed for the termination of continued fractions. A special feature of the recursion method highlighted here is its capability to predict the exponent of the infrared singularities in spectral densities.This publication has 10 references indexed in Scilit:
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