CNet reports: "Only time and money separate the current state of rocket propulsion science from the engine rooms of Star Trek's Starfleet, according to a university professor. ... James Woodward, a history professor at California State University in Fullerton, presented his research into Mach-Lorentz thrusters Wednesday at the Future in Review conference here. Mach-Lorentz thrusters (MLTs), assuming they can be scaled up from lab tests, could provide a new source of propulsion"
Mach-Lorentz Thrusters are based on the work of two men. Mach's principle which suggests that all particles in the universe have an effect on each other. Also Hendrik Lorentz work, who conducted research into the movement of charged particles in a magnetic field.