Quantum warp field
The quantum warp field is the means by which a starship is propelled at quantum slipstream velocity.

The Federation starship  had trouble generating a stable quantum warp field in 2374 when attempting to pursue the , an advanced alien vessel designed by Species 116. Eventually, the crew of Voyager managed to stabilize their quantum warp field. ()

See also 
 Quantum field

Warp
Energy fields