Flavors of Amplitudes

Liste des Contributions

1. Feynman Periods in Classical and Quantum Field Theory

Julio PARRA-MARTINEZ (IHES)

28/01/2026 13:30

In this talk I will review the appearance of periods as Feynman integral associated to classical and quantum scattering.
Using some specific examples, I will give a brief survey of the state of the art of the subject and describe in which physical quantities they arise.

2. Numerical computations of periods and monodromy representations

Eric PICHON-PHARABOD (Max Planck Institute for Mathematics in the Sciences, Leipzig, Germany)

28/01/2026 15:00

The period matrix of a smooth complex projective variety encodes the isomorphism between its singular homology and its algebraic De Rham cohomology. Numerical approximations with sufficient precision of the entries of the period matrix allow to recover some algebraic invariants of the variety. Such approximations can be obtained from an effective description of the homology of the variety,...

3. Thimble decomposition and Wall Crossing Structure for Physical Integrals

Roberta ANGIUS (Institute for Theoretical Physics, University of Hamburg, Germany)

28/01/2026 16:30

A growing body of evidence suggests that the complexity of physical integrals is most naturally understood through geometry. Recent mathematical developments by Kontsevich and Soibelman [arXiv:2402.07343] have illuminated the role of exponential integrals as periods of twisted de Rham cocycles over Betti cycles, offering a structured approach to address this problem in a wide range of...