  The quench dynamics of a strongly interacting bosons on quartic and sextic
trap are studied by solving the time dependent many-boson Schrodinger equation
numerically exactly. The dynamics is addressed by the key measures of one-body
density in conjugate space and information entropy. For both cases, rich
many-body dynamics is exhibited and loss of Bose-Fermi oscillation in the
Tonks-Girardeau limit is also attributed.
