  We investigate the quantum dynamics of two identical bosons in a
one-dimensional harmonic trap following an interaction quench from zero to
infinite interaction strength and vice versa. For both quench scenarios, closed
analytical expressions for the temporal evolution of the wave function as well
as the Loschmidt Echo are found and the dynamics of the momentum distribution
as well as the reduced single-particle density matrix are analyzed. We observe
a crossover of these quantities between bosonic, "symmetrized" fermionic and
fermionic properties. Furthermore, several combined quenches are analyzed as
well.
