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Feynman Amplitudes and Limits of Heights

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 نشر من قبل Omid Amini
 تاريخ النشر 2015
  مجال البحث فيزياء
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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 behavior of the height pairing between degree-zero divisors, as a family of Riemann surfaces degenerates. These are obtained by means of the nilpotent orbit theorem in Hodge theory.



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