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

K. Fabricius; U. Löw; K. -H. Mütter

doi:10.1088/0953-8984/7/28/017

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

Condensed Matter 2009-10-28 v2

Authors: 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 $(\tau)$ -representation. Away from the critical momentum $p=\pi$ finite size effects turn out to be small except for the large $\tau$ limit. The large finite size effects at the critical momentum $p=\pi$ signal the emergence of infrared singularities in the spectral $(\omega)$ -representation of the dynamical structure factors.

Keywords

XXZ model finite size effects dynamical structure factors critical momentum infrared singularities euclidean time

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@article{arxiv.cond-mat/9502072,
  title  = {COMPLETE SOLUTION OF THE XXZ-MODEL ON FINITE RINGS. DYNAMICAL STRUCTURE FACTORS AT ZERO TEMPERATURE.},
  author = {K. Fabricius and U. Löw and K. -H. Mütter},
  journal= {arXiv preprint arXiv:cond-mat/9502072},
  year   = {2009}
}

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

Abstract

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