  This work considers a multiple-input-single-output mmWave RSMA system wherein
a base station serves two users in the presence of a passive eavesdropper.
Different eavesdropping scenarios are considered corresponding to the
overlapped resolvable paths between the main and the wiretap channels under the
considered transmission schemes. The analytical expressions for the secrecy
outage probability are derived respectively through the Gaussian Chebyshev
quadrature method. Monte Carlo simulation results are presented to validate the
correctness of the derived analytical expressions and demonstrate the effects
of system parameters on the SOP of the considered mmWave RSMA systems.
