Computation of Dynamical Structure Factors with the Recursion Method

Details Computation of Dynamical Structure Factors with the Recursion Method Computation of Dynamical Structure Factors with the Recursion Method

1995-07-17

arxiv.org/abs/cond-mat/9507062v1

Physics

Condensed Matter

PostScript file with 13 pages + 5 figures, uuencoded compressed

Scientific paper

10.1088/0953-8984/7/47/018

We compute the energies and transition probabilities for low excitations in the one dimensional antiferromagnetic spin-1/2 Heisenberg model by means of the recursion method. We analyse finite size effects in the euclidian time ($\tau$)-representation and compare the resulting estimate for the thermodynamical limit with two parametrizations for the dynamical structure factors in the spectral ($\omega$)-representation.

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