Quantum algorithm for querying causality of multiloop scattering amplitudes
November 07, 2022
June 15, 2023
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.
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