  We study the optical properties of a hybrid device composed by a quantum dot
(QD) resonantly coupled to a photonic mode of an optical microcavity and a
Majorana nanowire: a topological superconducting segment hosting Majorana bound
states (MBSs) at the opposite ends. In the regime of strong light-matter
coupling, it is demonstrated that the leakage of the Majorana mode into the QD
opens new optical transitions between polaritonic states formed due to
hybridisation of material excitation with cavity photons, which leads to the
reshaping of the Jaynes-Cummings ladder and can lead to the formation of a
robust single-peak at cavity eigenfrequency in the emission spectrum. Moreover,
weak satellite peaks in the low and high frequency regions are revealed for the
distinct cases of highly isolated MBSs, overlapped MBSs and MBSs not well
localized at the nanowire ends.
