  The correlations in charge transport in multiple Majorana fermions systems
contain much richer physics and carry more information than the conventional
transport coefficients. We calculate the auto- and cross-correlations in the
spinful topological Kondo model and point out the frequencies dependencies of
the correlations that may serve as a proof of the existence of the Majorana
fermions in our system, particularly the change of the cross-correlation from
positive to negative at higher frequency.
