A dilogarithmic 3-dimensional ising tetrahedron
نویسندگان
چکیده
منابع مشابه
A dilogarithmic 3-dimensional Ising tetrahedron
In 3 dimensions, the Ising model is in the same universality class as φ-theory, whose massive 3-loop tetrahedral diagram, C, was of an unknown analytical nature. In contrast, all single-scale 4-dimensional tetrahedra were reduced, in hep-th/9803091, to special values of exponentially convergent polylogarithms. Combining dispersion relations with the integer-relation finder PSLQ, we find that C/...
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Perturbative quantum field theory for the Ising model at the three-loop level yields a tetrahedral Feynman diagram C(a, b) with masses a and b and four other lines with unit mass. The completely symmetric tetrahedron CTet ≡ C(1, 1) has been of interest from many points of view, with several representations and conjectures having been given in the literature. We prove a conjectured exponentially...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 1999
ISSN: 1434-6044,1434-6052
DOI: 10.1007/s100529900983