Universal sextic effective interaction at criticality

Details Universal sextic effective interaction at criticality Universal sextic effective interaction at criticality

1998-03-30

arxiv.org/abs/cond-mat/9803357v1

Phys.Lett. A227 (1997) 255-258

Physics

Condensed Matter

Statistical Mechanics

6 pages, TeX, no figures

Scientific paper

10.1016/S0375-9601(97)00049-2

The renormalization group approach in three dimensions is used to estimate the universal critical value g_6^* of the dimensionless sextic effective coupling constant for the Ising model. The four-loop RG expansion for g_6 is calculated and resummed by means of the Pade-Borel and Pade-Borel-Leroy procedures resulting in g_6^* = 1.596, while the most accurate estimate for g_6^* is argued to be equal to 1.61.

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