Finite-Size Scaling in the $O(N)$ $φ^4_4$ Model

Physics – High Energy Physics – High Energy Physics - Lattice

Scientific paper

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13 pages

Scientific paper

Perturbation theory and renormalization group methods are used to derive a finite-size scaling theory for the partition function zeroes and thermodynamic functions in the $O(n)$ $\phi^4$ model in four dimensions. The leading power--law scaling behaviour is the same as that of the mean field theory. There exist, however, multiplicative logarithmic corrections which are linked to the triviality of the theory.

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