The actual intermix chamber at the heart of a warp propulsion system, as designed in Federation vessels, where matter and antimatter are safely allowed to react in the most efficient manner. The residual energy, regulated by a dilithium matrix and a series of warp field coils, then creates a subspace field about the vessel for faster-than-light travel. The use of antimatter requires than a series of safety interlocks and magnetic fields protect the entire warp core.