So, I recently read "Divining Light" by Ted Kosmatka. In it, he proposes a thought experiment (acted out in full by his characters) in which the double-slit experiment with electrons is performed. The detectors at each slit are wired to a computer, and do not click or turn on a light, merely...
The main issue this method would have would be the same all other systems of propulsion have. The amount of energy required to accelerate a unit of mass increases exponentially as velocity increases. It would still require a vast amount of energy to accelerate the craft to useful speeds, i.e...