paper

Correlation functions of the XXZ spin-1/2 Heisenberg chain at the free fermion point from their multiple integral representations

arXiv:hep-th/0203169 · doi:10.1016/S0550-3213(02)00680-6

Abstract

Using multiple integral representations, we derive exact expressions for the correlation functions of the spin-1/2 Heisenberg chain at the free fermion point.

24 pages, LaTex

Correlation functions of the XXZ spin-1/2 Heisenberg chain at the free fermion point from their multiple integral representations · wovepaper