  In this paper we study the finite-frequency current cross-correlations for a
topological superconducting nanowire attached to two terminals at one of its
ends. Using an analytic 1D model we show that the presence of a Majorana bound
state yields vanishing cross-correlations for frequencies larger than twice the
applied transport voltage, in contrast to what is found for a zero-energy
ordinary Andreev bound state. Zero cross-correlations at high frequency have
been confirmed using a more realistic tight-binding model for finite-width
topological superconducting nanowires. Finite-temperature effects have also
been investigated.
