Spontaneous Magnetization of the Integrable Chiral Potts Model

Abstract

We show how $Z$-invariance in the chiral Potts model provides a strategy to calculate the pair correlation in the general integrable chiral Potts model using only the superintegrable eigenvectors. When the distance between the two spins in the correlation function becomes infinite it becomes the square of the order parameter. In this way, we show that the spontaneous magnetization can be expressed in terms of the inner products of the eigenvectors of the $N$ asymptotically degenerate maximum eigenvalues. Using our previous results on these eigenvectors, we are able to obtain the order parameter as a sum almost identical to the one given by Baxter. This gives the known spontaneous magnetization of the chiral Potts model by an entirely different approach.

LaTeX 2E document, using iopart.cls with iopams packages, 22 pages, 1 eps figure. Presented at the Simons Center for Geometry and Physics Workshop on Correlation Functions for Integrable Models 2010: January 18-22, 2010. Version 2: The identity conjectured in version 1 is now proved and its proof is presented in arXiv:1108.4713; various small corrections and improvements have been made also

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Cited by in corpus (5)

• Extended Z-invariance for integrable vector and face models and multi-component integrable quad equations
• Spontaneous Magnetization of the Integrable Chiral Potts Model
• Exactly solved models on planar graphs with vertices in ${\mathbb{Z}}^3$
• Superintegrable chiral Potts model: Proof of the conjecture for the coefficients of the generating function G(t,u)
• q-Deformed Onsager symmetry in boundary integrable models related to twisted U${}_{q^{1/2}}(\widehat{s{l}_2})$ symmetry