Speaker
Description
One of the central goals of high-energy physics is to understand scattering processes and what they reveal about the underlying theory. This is traditionally framed within the $S$-matrix picture, which cannot, in general, be accessed through Euclidean lattice methods. However, with recent advances in quantum technologies and computational methods, the prospect of studying real-time processes in gauge theories is becoming increasingly realistic. At present, simulations of scattering events remain limited to lower-dimensional theories and modest energy ranges. In this talk, we present the first real-time simulations of hadronic scattering in (1+1)D SU(2) gauge theory with matter, performed using tensor network techniques. We investigate processes in sectors with conserved global baryon number $B = 0, 1, 2$. While the $B = 0$ sector exhibits dynamics closely resembling those of a U(1) theory, the higher-$B$ sectors display qualitatively new behaviour. In particular, we find that local baryon number spreads during scattering in a manner analogous to entanglement entropy growth. We conclude by discussing how these results contribute to a fully non-perturbative picture of particle production.
