  The Alcubierre warp drive metric is a spacetime construction where a massive
particle located inside a spacetime distortion, called warp bubble, travels at
velocities arbitrarily higher than the velocity of light. This theoretically
constructed spacetime geometry is a consequence of general relativity where
global superluminal velocities, also known as warp speeds, are possible,
whereas local speeds are limited to subluminal ones as required by special
relativity. In this work we analyze the solutions of the Einstein equations
having charged dust energy-momentum tensor as source for warp velocities. The
Einstein equations with the cosmological constant are written and all solutions
having energy-momentum tensor components for electromagnetic fields generated
by charged dust are presented, as well as the respective energy conditions. The
results show an interplay between the energy conditions and the electromagnetic
field such that in some cases the former can be satisfied by both positive and
negative matter density. In other cases the dominant and null energy conditions
are violated. A result connecting the electric energy density with the
cosmological constant is also presented, as well as the effects of the
electromagnetic field on the bubble dynamics.
