  While a wealth of results has been obtained for chaos in single-particle
quantum systems, much less is known about chaos in quantum many-body systems.
We contribute to recent efforts to make a semiclassical analysis of such
systems feasible, which is nontrivial due to the exponential proliferation of
orbits with increasing particle number. Employing a recently discovered duality
relation, we focus on the collective, coherent motion that together with the
also present incoherent one typically leads to a mixture of regular and chaotic
dynamics. We investigate a kicked spin chain as an example of a presently
experimentally and theoretically much studied class of systems.
