  We study a dynamic process of disentanglement by considering the time
evolution of bound entanglement for a quantum open system, two qutrits coupling
to a common environment. Here, the initial quantum correlations of the two
qutrits are characterized by the bound entanglement. In order to show the
universality of the role of environment on bound entanglement, both bosonic and
spin environments are considered. We found that the bound entanglement displays
collapses and revivals, and it can be stable against small temperature and time
change. The thermal fluctuation effects on bound entanglement are also
considered.
