This is a hard scifi concept I have been playing with the idea for a while now. A light speed probability drive. When we generally think of light, it expands outward in a sphere to illuminate a region, yet it is in individual packets of energy. We think of an electron as a particle, yet when observed it is a harmonic field surrounding an atom in a shell.

I was thinking that when this drive is engaged, rather than going from point A to point B, it expands in a shell the speed of light. However with time dilation being in effect, those in the craft would be frozen in stopped time. As they can not control anything while the drive is engaged, they would need to first send a signal to what I call a needle. A device that would "pop the bubble" per say, collapsing the Heisenberg wave form of the sphere back into being a spaceship. The needle would have to activate at the moment the expanding sphere crosses it's location.

This gives a plot hole in which pirates, military, or some form of police could intercept the signal and pop the bubble with their own needle in a closer radius than the target needle. However it could be on the other side of the star system, stranding the travelers farther from their desired destination than even the origin.

Perhaps each system would have an emergency needle at the outermost radius of the system to pop all detected bubbles in case the destination needle fails. Perhaps it is always in an active state so no detection is needed? There could be different ways of handling this safety feature less you want lost ships to simply fade into the background radiation of the universe.

While still too slow for interstellar travel in most instances used in science fiction, it would do well in an interplanetary system. Just an idea I had been playing with, perhaps someone might find use for.