Some algebraic and arithmetic properties of Feynman diagrams
arXiv:1801.05555 · doi:10.1007/978-3-030-04480-0_19
Abstract
This article reports on some recent progresses in Bessel moments, which represent a class of Feynman diagrams in 2-dimensional quantum field theory. Many challenging mathematical problems on these Bessel moments have been formulated as a vast set of conjectures, by David Broadhurst and collaborators, who work at the intersection of high energy physics, number theory and algebraic geometry. We present the main ideas behind our verifications of several such conjectures, which revolve around linear and non-linear sum rules of Bessel moments, as well as relations between individual Feynman diagrams and critical values of modular -functions.
(v1) 25 pages, 2 tables, 2 TikZ figures. An expository survey of recent progresses (arXiv:1706.01068, arXiv:1706.08308, arXiv:1708.02857, arXiv:1711.01829, arXiv:1801.02182) in Bessel moments and Broadhurst's conjectures (arXiv:1604.03057); (v2) Minor clarifications in Sect. 2.3 and updates in references; (v3) 25+3 pages. Fig. 2 corrected, erratum at the end
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