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Additive renormalization of the specific heat of O(n) symmetric systems in three-loop order | | Stuart S.C. Burnett
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29 Oct 1997 | | Subject: | Statistical Mechanics | cond-mat.stat-mech hep-th | | Affiliation: | Manitoba | | Abstract: | We present three-loop formulas for the additive renormalization constant A(u,epsilon) and associated renormalization group function B(u) for the specific heat of the O(n) symmetric phi^4 model. Using this result, we obtain also the amplitude function above Tc within the minimally renormalied theory at fixed d=3. At the fixed point, the three-loop correction to B(u) turns out to be small (about 3% for n=2). We note that a correction of this size may become important at the level of accuracy expected in future experiments. | | Source: | arXiv, cond-mat/9710314 | | Services: | Forum | Review | PDF | Favorites | |
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