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arXiv · 1704.03449

Twisted elliptic multiple zeta values and non-planar one-loop open-string amplitudes

Johannes Broedel·Nils Matthes·Gregor Richter·Oliver Schlotterer
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Abstract

We consider a generalization of elliptic multiple zeta values, which we call twisted elliptic multiple zeta values. These arise as iterated integrals on an elliptic curve from which a rational lattice has been removed. At the cusp, twisted elliptic multiple zeta values are shown to degenerate to cyclotomic multiple zeta values in the same way as elliptic multiple zeta values degenerate to classical multiple zeta values. We investigate properties of twisted elliptic multiple zeta values and consider them in the context of the non-planar part of the four-point one-loop open-string amplitude.

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Johannes Broedel, Nils Matthes, Gregor Richter, Oliver Schlotterer. 2017-04-11. Twisted elliptic multiple zeta values and non-planar one-loop open-string amplitudes. https://doi.org/10.1088/1751-8121/aac601

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