Quantum algorithm for querying causality of multiloop scattering amplitudes
Selomit Ramírez-Uribe · Proceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022) · 2022
The first application of a quantum algorithm to Feynman loop integrals is reviewed. The connection between quantum computing and perturbative quantum field theory is feasible due to fact that the two on-shell states of a Feynman propagator are naturally encoded in a qubit. The particular problem to be addressed is the identification of the causal singular configurations of multiloop Feynman diagrams. The identification of such configurations is carried out through the implementation of a modified Grover's quantum algorithm for querying multiple solutions over unstructured datasets.