The Alcubierre Warp Field

The Alcubierre Warp Drive is a hypothetical form of propulsion conceived from a solution of Einstein’s field equations in his general theory of relativity, and put forth by theoretical physicist Miguel Alcubierre. It is suggested that a spacecraft could achieve super-luminal velocities if a configurable field with an energy-density lower than that of vacuum (i.e. negative mass) could be created. Currently, scientists are unable to determine how to produce negative mass. A number of theories support the possibility of such exotic materials.

For Additional information of the Alcubierre Warp Drive, I recommend the following articles:

https://phys.org/news/2017-01-alcubierre-warp.html

https://en.wikipedia.org/wiki/Alcubierre_drive