  In Classical Dynamics, Eisenhart lift connects the dynamics of null geodesics
in a Brinkmann spacetime with a continuous family of Hamiltonian systems by
means of a suitable projection. In this work we explore the possibility of
building a model for quantum dynamics of massless particles propagating inside
a Brinkmann spacetime from the Einsenhart lift. As a result, we describe
spatial tunneling between regions classically disconnected for certain class of
null geodesics because of curvature. Also we describe entangled states arising
from observers who have a limited access to the whole Brinkmann space. Finally
we explore the possibility to find a quantum field theory behind these quantum
phenomena.
