Comment Re:This again? (Score 1) 480
We already know about photon thrust. As a practical matter, it sucks as a space drive, since the amount of momentum we get from a given amount of energy is pitiful. This engine is claimed to produce a lot more thrust than a photon engine, which means it isn't just transferring momentum to photons.
Are you talking about virtual particle pairs? Where does the momentum go when they vanish? Bear in mind that they appear and vanish faster than we can directly notice them, so how is momentum transferred, and how is it conserved over, say, a millisecond?