Speaker
Christian Schubert
(Facultad de Ciencias Físico-Matemáticas, Universidad Michoacana de San Nicolas de Hidalgo)
Description
It has been known for many years that methods inspired by string theory, such as the worldline formalism, allow one to write down integral representations that combine large numbers of Feynman diagrams of different topologies. However, to make this fact useful for state-of-the-art calculations one has to confront non-standard integration problems where neither the known integration techniques for Feynman diagrams nor algebraic manipulation programs are of much help. Here I will give a progress report on this long-term project focusing on photon amplitudes at one and two loops, in vacuum and in external fields.
Primary author
Christian Schubert
(Facultad de Ciencias Físico-Matemáticas, Universidad Michoacana de San Nicolas de Hidalgo)
Co-authors
Dr
Naser Ahmadiniaz
(Helmholtz-Zentrum Dresden-Rossendorf (HZDR))
Dr
Victor M. Banda Guzmán
(Universidad Politécnica de San Luis Potosí)
Prof.
James P. Edwards
(Centre for Mathematical Sciences, University of Plymouth)
Misha A. Lopez-Lopez
(Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and Institut für Theoretische Physik, Technische Universität Dresden)
C. Moctezuma Mata
(Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolas de Hidalgo)
Luis A. Rodriguez Chacón
(Department of Physics, University of Cyprus)
