  We present a bipartite two-level system coupled to electromagnetic quantum
vacuum fluctuations through a general dipolar coupling. We derive the master
equation in the framework of open quantum systems, assuming an environment
composed of (i) solely vacuum fluctuations and (ii) the vacuum fluctuations and
a conducting plate located at a fixed distance from the bipartite system. For
both cases considered, we study the dynamics of the bipartite system and the
temporal evolution of the concurrence of an initial entangled bipartite state.
We further analyze the generation of entanglement due to the vacuum structure.
Finally, we study the different induced contributions to the correction of the
unitary geometric phase of a bipartite quantum state so as to explore the
possibility of future experimental setups by considering the influence of
boundaries conditions in vacuum
