Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-10-13
Nucl.Phys. B516 (1998) 623-651
Physics
High Energy Physics
High Energy Physics - Theory
22 pages, uses pictex.tex, typos corrected and minor changes
Scientific paper
10.1016/S0550-3213(98)00086-8
A free field representation for the type $I$ vertex operators and the corner transfer matrices of the eight-vertex model is proposed. The construction uses the vertex-face correspondence, which makes it possible to express correlation functions of the eight-vertex model in terms of correlation functions of the SOS model with a nonlocal insertion. This new nonlocal insertion admits of a free field representation in terms of Lukyanov's screening operator. The spectrum of the corner transfer matrix and the Baxter--Kelland formula for the average staggered polarization have been reproduced.
Lashkevich Michael
Pugai Yaroslav
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