While researching about different possible space-drives for my sci-fi universe I came across a Warp Drive theory that makes use of Dark Energy and Dark Matter. At first I believed them to be similar to Alcubierre Warp Drives however, I found that dark matter, dark energy, and negative energy (exotic energy) are very different things. I tried to research it but, most everything I found did not specify how the engine would theoretically work. So my question is:
How would a dark matter or dark energy warp drive theoretically work as compared to the Alcubierre Warp Drive?