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This article is cited in 9 scientific papers (total in 9 papers)
Feynman amplitudes and limits of heights
O. Aminia, S. J. Bloch, J. I. Burgos Gilb, J. Fresánc a CNRS--DMA, École Normale Supérieure, Paris, France
b Instituto de Ciencias Matemáticas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
c Eidgenössische Technische Hochschule Zürich, Zürich, Switzerland
Abstract:
We investigate from a mathematical perspective how Feynman amplitudes appear
in the low-energy limit of string amplitudes. In this paper, we prove
the convergence of the integrands. We derive this from results describing
the asymptotic behaviour of the height pairing between degree-zero divisors,
as a family of curves degenerates. These are obtained by means
of the nilpotent orbit theorem in Hodge theory.
Keywords:
Feynman amplitudes, low-energy limit, asymptotics of the archimedean height pairing,
Symanzik polynomials, nilpotent orbit theorem, biextension mixed Hodge structures,
regularized Green functions.
Received: 15.12.2015 Revised: 18.04.2016
Citation:
O. Amini, S. J. Bloch, J. I. Burgos Gil, J. Fresán, “Feynman amplitudes and limits of heights”, Izv. Math., 80:5 (2016), 813–848
Linking options:
https://www.mathnet.ru/eng/im8492https://doi.org/10.1070/IM8492 https://www.mathnet.ru/eng/im/v80/i5/p5
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