Fe b 20 05 Harmonic crossover exponents in O ( n ) models with the pseudo - ǫ expansion approach
نویسنده
چکیده
We determine the crossover exponents associated with the traceless tensorial quadratic field, the thirdand fourth-harmonic operators for O(n) vector models by re-analyzing the existing six-loop fixed dimension series with the pseudo-ǫ expansion. With this approach we obtain accurate theoretical estimates that are in optimum agreement with other theoretical and experimental results. PACS Numbers: 64.60.Fr, 05.70.Jk, 64.60.Kw, 61.30.-v Typeset using REVTEX
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1 N ov 2 00 4 Harmonic crossover exponents in O ( n ) models with the pseudo - ǫ expansion approach
We determine the crossover exponents associated with the traceless tensorial quadratic field, the thirdand fourth-harmonic operators for O(n) vector models by re-analyzing the existing six-loop fixed dimension series with pseudo-ǫ expansion. Within this approach we obtain the most accurate theoretical estimates that are in optimum agreement with other theoretical and experimental results. PACS ...
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تاریخ انتشار 2008