We study quantum chaos for systems with more than one degree of freedom, for
which we present an analysis of the dynamics of entanglement. Our analysis
explains the main features of entanglement dynamics and identifies
entanglement-based signatures of quantum chaos. We discuss entanglement
dynamics for a feasible experiment involving an atom in a magneto-optical trap
and compare the results with entanglement dynamics for the well-studied quantum
kicked top.Comment: 4 pages, 6 figure