The ϕ_3^4 lattice field theory viewed from the high-temperature side

Abstract

We analyze high-temperature series expansions of the two-point and four-point correlation-functions in the three-dimensional euclidean lattice scalar field theory with quartic self-coupling, which have been recently extended through twenty-fifth order for the simple-cubic and body-centered-cubic lattices. We conclude that the length of the present series is sufficient for a fairly accurate description of the critical behavior of the model and confirm the validity of universality, scaling and hyperscaling. In the case of the body-centered-cubic lattice, we determine the value of the quartic self-coupling for which the leading corrections to scaling approximately vanish and correspondingly the universal critical parameters can be determined with high accuracy. In particular, for the susceptibility and the correlation-length exponents we find γ=1.2373(2) and ν=0.6301(2). For the four-point renormalized coupling we find g=23.56(3). In the case of the simple-cubic lattice our results are consistent with earlier estimates.

16 pages, 11 figures, latex

References in corpus (1)

• Updated tests of scaling and universality for the spin-spin correlations in the 2D and 3D spin-S Ising models using high-temperature expansions

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