5 papers
From multiple integrals to Fredholm determinants
Alexander Seel, Frank Göhmann, Andreas Klümper
We consider a multiple integral representation for the finite temperature density-density correlation functions of the one-dimensional Bose gas with delta function interaction in t…
XX and Ising limits in integral formulae for finite temperature correlation functions of the XXZ chain
Frank Göhmann, Alexander Seel
We consider a multiple integral representation for a one-parameter generating function of the finite temperature - correlation functions of the antiferromagnetic spin-1/2…
Integral representation of the density matrix of the XXZ chain at finite temperatures
Frank Göhmann, Andreas Klümper, Alexander Seel
We present an integral formula for the density matrix of a finite segment of the infinitely long spin-1/2 XXZ chain. This formula is valid for any temperature and any longitudinal…
Universal correlations of one-dimensional electrons at low density
F. Göhmann
We summarize results on the asymptotics of the two-particle Green functions of interacting electrons in one dimension. Below a critical value of the chemical potential the Fermi su…
Comment on the paper ``Bound States in the One-dimensional Hubbard Model''
F. H. L. Eßler, F. Göhmann, V. E. Korepin
We comment on the preprint cond-mat/9805103 by D. Braak and N. Andrei \cite{BrAn98}. We point out that the ``new'' Bethe Ansatz equations presented in \cite{BrAn98} are identical t…