  We investigate the effects of Efimov states on the post-quench dynamics of a
system of three identical bosons with contact interactions, in a
spherically-symmetric three-dimensional harmonic trap, which undergoes a quench
in interaction strength. Using known hyperspherical solutions to the static
three-body problem we calculate semi-analytic results for the Ramsey signal and
particle separation as functions of time after the system is quenched. We
consider the quench from the non-interacting to strongly interacting and vice
versa for a variety of possible Efimov state energies.
