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Four-Loop Perturbative Expansion for the Lattice $N$-Vector Model

Sergio Caracciolo·Andrea Pelissetto
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Abstract

We compute the four-loop contributions to the $β$-function and the anomalous dimension of the field for the $O(N)$-invariant $N$-vector model. These results are used to compute the second analytic corrections to the correlation length and the general spin-$n$ susceptibility.

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Sergio Caracciolo, Andrea Pelissetto. 1995-10-07. Four-Loop Perturbative Expansion for the Lattice $N$-Vector Model. https://doi.org/10.1016/0550-3213(95)00438-x

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