AMF-FTL

Description
The Anti-Matter-Fusion_Faster-Than-Light engine works with the simple principle of fusing two Anti-Atoms (1) together with an Anti-Neutrino (2) in the fusion chamber (3), causing massive energy output. (5)

This all also generates a tremendous amount of heat, which is why the fusion chamber is surrounded by liquid helium (4). The more heat you lose in the process of fusing the less energy output you will have.

Trivia

 * Scientists have no idea what's done with the energy.