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Equation of State in (4 - ∊) - Dimensional Ising Model

G. M. Avdeeva, Alexander Migdal

Published Aug 1, 1972• 5 citations
OpenAlex

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The scaling equation of state of an Ising-like ferromagnet is derived by an expansion in $\ensuremath{\epsilon}=4\ensuremath{-}d$, where ddd is the dimension of space. The result is compared with numerical calculations on the three-dimensional Ising model. It is also established that the "linear model" is exact up to order ${\ensuremath{\epsilon}}^{2}$.