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Conformal invariance and linear defects in the two-dimensional Ising model

L. Turban
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Abstract

Using conformal invariance, we show that the non-universal exponent eta_0 associated with the decay of correlations along a defect line of modified bonds in the square-lattice Ising model is related to the amplitude A_0=xi_n/n of the correlation length ξ_n(K_c) at the bulk critical coupling K_c, on a strip with width n, periodic boundary conditions and two equidistant defect lines along the strip, through A_0=(πη_0)^{-1}.

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L. Turban. 2001-06-28. Conformal invariance and linear defects in the two-dimensional Ising model. https://doi.org/10.1088/0305-4470%2F18%2F6%2F012

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