  Mesoscopic samples of polarized dipolar atoms confined in three spatially
separated traps conform an extended Bose-Hubbard Hamiltonian in which different
quantum phases appear depending on the competition between tunneling, on-site
and long range inter-site dipole-dipole interactions. Here, by choosing an
appropriate configuration of triple-wells, we analyze the role played by the
anisotropic character inherent to the dipolar interaction in the phase diagram
of the system. We further characterize the different phases as well as their
boundaries by means of their entanglement properties.
