  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.
