Finite Size Analysis of the Structure Factors in the Antiferromagnetic XXZ Model

Abstract

We perform a finite size analysis of the longitudinal and transverse structure factors $S_j(p,\gamma ,N),j=1,3$ in the groundstate of the spin-$\frac{1}{2}$ XXZ model. Comparison with the exact results of Tonegawa for the XX model yields excellent agreement. Comparison with the conjecture of Müller, Thomas, Puga and Beck reveals discrepancies in the momentum dependence of the longitudinal structure factors.

9 pages RevTex 3.0 and 17 figures as uuencoded file

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