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COMPLETE SOLUTION OF THE XXZ-MODEL ON FINITE RINGS. DYNAMICAL STRUCTURE FACTORS AT ZERO TEMPERATURE.

K. Fabricius·U. Löw·K. -H. Mütter
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Abstract

The finite size effects of the dynamical structure factors in the XXZ-model are studied in the euclidean time $(τ)$-representation. Away from the critical momentum $p=π$ finite size effects turn out to be small except for the large $τ$ limit. The large finite size effects at the critical momentum $p=π$ signal the emergence of infrared singularities in the spectral $(ω)$-representation of the dynamical structure factors.

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K. Fabricius, U. Löw, K. -H. Mütter. 1995-03-24. COMPLETE SOLUTION OF THE XXZ-MODEL ON FINITE RINGS. DYNAMICAL STRUCTURE FACTORS AT ZERO TEMPERATURE.. https://doi.org/10.1088/0953-8984%2F7%2F28%2F017

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