  In this work we investigate Majorana correlations in quantum impurities
coupled to a topological superconducting wire. By employing a density matrix
renormalization group approach, we have calculated the Majorana correlation
functions in the ground state of the system for different positions of the
impurities along the wire. We observe that the correlations decreases
exponentially with the distance between the impurities and the ends of the
wire. Moreover, different electron-electron interactions on the wire and on the
impurities were also analyzed, and the results showed a stronger effect as the
electron occupation in the wire is increased. Moreover, changing the occupation
of the impurities by tuning their energy levels, we observe that for specific
values of $\epsilon$ the absolute value of correlation is highly peaked when
the chemical potential lies within the window of the topological regime. These
peaks are associated to coulomb blockade phenomena in the impurities, revealing
very clearly its effect on the Majorana bound states in the topological phase
of the system.
