Quantum simulation of colour in perturbative quantum chromodynamics

Quantum computers are expected to give major speed-ups for the simulation of quan-tum systems. In this work, we present quantum gates that simulate the colour part of the interactions of quarks and gluons in perturbative quantum chromodynamics (QCD). As a first application, we implement these circuits on a simulated noiseless quantum computer and use them to calculate colour factors for various examples of Feynman di-agrams. This work constitutes a first key step towards a quantum simulation of generic scattering processes in perturbative QCD.

Automated summary

In this work, quantum gates that simulate the color part of quark and gluon interactions in perturbative quantum chromodynamics (QCD) are presented. These gates are implemented on a simulated noiseless quantum computer to calculate color factors for Feynman diagrams. This work represents a crucial first step towards quantum simulation of generic scattering processes in perturbative QCD.