  We discuss the generation and the long-time persistence of entanglement in
open two-qubit systems whose reduced dissipative dynamics is not apriori
engineered but is instead subjected to filtering and Markovian feedback. In
particular, we analytically study 1.) whether the latter operations may enhance
the environment capability of generating entanglement at short times and 2.)
whether the generated entaglement survives in the long-time regime. We show
that, in the case of particularly symmetric
Gorini-Kossakowski-Sudarshan-Lindblad (GKSL) it is possible to fully control
the convex set of stationary states of the two-qubit reduced dynamics,
therefore the asymptotic behaviour of any initial two-qubit state. We then
study the impact of a suitable class of feed-back operations on the considered
dynamics.
