  The present work aims to search for an implementation of new symmetries in
the space-time in order to enable us to find a connection between
electrodynamics and gravitation, from where quantum principles naturally
emerge. To do that, first of all we build a heuristic model of the
electromagnetic nature of the electron so that the influence of the
gravitational field on the electrodynamics of such moving particle leads us
essentially to an elimination of the classical idea of rest by introducing the
idea of a universal minimum limit of speed ($V$). Such a lowest limit $V$,
being unattainable by the particles, represents a fundamental and preferred
reference frame connected to a universal background field (a vacuum energy)
that breaks Lorentz symmetry. So there emerges a new principle of symmetry in
the space-time at the subatomic level for very low energies close to the
background frame ($v\approx V$), providing a fundamental understanding for the
uncertainty principle.
