  We study the electron and phonon spectral functions as well as
superconductivity for a two dimensional electron gas couped to dipolar phonons
via small-momentum transfer scattering. The results reported here are obtained
through sign-problem-free quantum Monte-Carlo simulation. Hence aside from
modeling there is no further approximations. Our results can be relevant to the
high-temperature superconductor at the interface between a unit-cell-thick FeSe
and SrTiO3.
