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Journal Articles Journal of Physics A General Physics (1968-1972) Year : 2005

Traces on the Sklyanin algebra and correlation functions of the eight-vertex model

H. Boos
  • Function : Author
M. Jimbo
  • Function : Author
T. Miwa
  • Function : Author
Y. Takeyama
  • Function : Author

Abstract

We propose a conjectural formula for correlation functions of the Z-invariant (inhomogeneous) eight-vertex model. We refer to this conjecture as Ansatz. It states that correlation functions are linear combinations of products of three transcendental functions, with theta functions and derivatives as coefficients. The transcendental functions are essentially logarithmic derivatives of the partition function per site. The coefficients are given in terms of a linear functional on the Sklyanin algebra, which interpolates the usual trace on finite dimensional representations. We establish the existence of the functional and discuss the connection to the geometry of the classical limit. We also conjecture that the Ansatz satisfies the reduced qKZ equation. As a non-trivial example of the Ansatz, we present a new formula for the next-nearest neighbor correlation functions.

Dates and versions

hal-00101478 , version 1 (27-09-2006)

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H. Boos, M. Jimbo, T. Miwa, F. Smirnov, Y. Takeyama. Traces on the Sklyanin algebra and correlation functions of the eight-vertex model. Journal of Physics A General Physics (1968-1972), 2005, 38, pp.7629-7660. ⟨10.1007/s00220-007-0202-x⟩. ⟨hal-00101478⟩
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