  Hybrid system composed by a semiconducting nanowire with proximity-induced
superconductivity and a quantum dot at the end working as spectrometer was
recently used to quantify the so-called degree of Majorana nonlocality [Deng et
al., Phys.Rev.B, 98, 085125 (2018)]. Here we demonstrate that spin-resolved
density of states of the dot responsible for zero-bias conductance peak
strongly depends on the separation between the Majorana bound states (MBSs) and
their relative couplings with the dot and investigate how the charging energy
affects the spectrum of the system in the distinct scenarios of Majorana
nonlocality (topological quality). Our findings suggest that spin-resolved
spectroscopy of the local density of states of the dot can be used as a
powerful tool for discriminating between different scenarios of the emergence
of zero-bias conductance peak.
