Video URL
https://pirsa.org/18120021A Bestiary of Feynman Integral Calabi-Yaus
APA
von Hippel, M. (2018). A Bestiary of Feynman Integral Calabi-Yaus. Perimeter Institute for Theoretical Physics. https://pirsa.org/18120021
MLA
von Hippel, Matt. A Bestiary of Feynman Integral Calabi-Yaus. Perimeter Institute for Theoretical Physics, Dec. 11, 2018, https://pirsa.org/18120021
BibTex
@misc{ scivideos_PIRSA:18120021, doi = {10.48660/18120021}, url = {https://pirsa.org/18120021}, author = {von Hippel, Matt}, keywords = {Quantum Fields and Strings}, language = {en}, title = {A Bestiary of Feynman Integral Calabi-Yaus}, publisher = {Perimeter Institute for Theoretical Physics}, year = {2018}, month = {dec}, note = {PIRSA:18120021 see, \url{https://scivideos.org/index.php/pirsa/18120021}} }
Matt von Hippel University of Copenhagen
Abstract
While the simplest Feynman diagrams evaluate to multiple polylogarithms, more complicated functions can arise, involving integrals over higher-dimensional manifolds. Surprisingly, all examples of such manifolds in the literature to date are Calabi-Yau. I discuss why this is, and prove that a specific class of "marginal" diagrams give rise to Calabi-Yau manifolds. I demonstrate a bound on the dimensionality of these manifolds with loop order, and present infinite families of diagrams that saturate this bound to all orders.