Speaker
Mathijs Fraaije
Description
I will present work on Tropical sampling from Feynman measures:
We introduce an algorithm that samples a set of loop momenta distributed as a given Feynman integrand. The algorithm uses the tropical sampling method and can be applied to evaluate phase-space-type integrals efficiently. We provide an implementation, momtrop, and apply it to a series of relevant integrals from the loop-tree duality framework. Compared to naive sampling methods, we observe convergence speedups by factors of more than $10^6$.
This is a joint work with Michael Borinsky.
Significance
This presentation covers a novel Monte Carlo algorithm that can provide large convergence speedups for certain classes of integrals in high-energy physics.
References
https://arxiv.org/abs/2504.09613
Authors
Mathijs Fraaije
Michael Borinsky
(Perimeter Institute)