Manuel John and colleagues at the Institute for Quantum Optics and Quantum Information, in collaboration with University of Innsbruck and Academy of Sciences, have performed the first quantum simulation of non-abelian string-breaking dynamics using a trapped-ion quantum computer. The simulation addresses a key challenge for classical computation by showing how gauge-field self-interactions can drive string breaking, even without dynamical matter. It also locally resolves string oscillations and coherent breaking via gluonic excitations. The team’s hardware-efficient, problem-tailored qudit simulations offer a promising pathway towards understanding non-perturbative dynamics vital to high-energy physics. Quantum simulation reveals dynamics of non-abelian string breaking at unprecedented timescales A six-fold increase in the simulation timescale of non-abelian string-breaking dynamics has been achieved, extending simulations to approximately 260 femtoseconds. This breakthrough surpasses the capabilities of classical computation for modelling these complex interactions, which are important to understanding the strong force governing quarks and gluons. Dr. Christina Moschi and Dr. Roger Melko conducted the experiment, representing the first successful quantum simulation of genuine SU(2) lattice gauge theory, a sharp step beyond prior work restricted to simpler, Abelian systems. The significance of this lies in the fact that the strong force, one of the four fundamental forces of nature, is described by quantum chromodynamics (QCD), a non-abelian gauge theory. Classical simulations of QCD are hampered by the exponential growth of computational resources required as the strength of the interaction increases, a phenomenon known as the ‘sign problem’. Quantum simulation offers a potential solution by leveraging the principles of quantum mechanics to represent and evolve the system more efficiently. Encoding gauge fields using qudits, quantum units with more than two states, and a tailored truncation scheme provided new insights into the behaviour of fundamental particles, specifically locally resolved string oscillations and coherent string breaking driven by gluonic excitations. This advancement builds