  The objective of this work is to study time-minimum and energy-minimum global
optimal control for dissipative open quantum systems whose dynamics is governed
by the Lindblad equation. The controls appear only in the Hamiltonian.
  Using recent results regarding the decoupling of such dissipative dynamics
into intra- and inter-unitary orbits, we transform the control system into a
bi-linear control system on the Bloch ball (the unitary sphere together with
its interior). We then design a numerical algorithm to construct an optimal
path to achieve a desired point given initial states close to the origin (the
singular point) of the Bloch ball. This is done both for the minimum-time and
minimum -energy control problems.
