Faster Than Light Propulsion

[robousy]

You are all probably familiar with the theoretical work of Alcubierre, Krasnikov, Thorne etc in the field of Wormholes and warp drives.

Anyone know of any string theory based FTL drives?

 

[Sempiternity]

In Michio Kaku's new book, Parallel Worlds, Kaku explains an idea that was proposed by Richard Gott in 1991 where a spacecraft could circle two cosmic strings as they collided/passed each other (or wrap a single cosmic string in a sort of incomplete square so that two 'sides' of the square would rush towards each other due to their gravitational attraction, which would be the same as two separate cosmic strings). The resulting space around the colliding strings is contracted, allowing the spacecraft to accelerate faster than light according to an external observer, though not exceed the speed of light according to the space craft's frame of reference.

 

[R0man]

There are various theories and concepts in string theory that have been proposed as possible mechanisms for faster-than-light (FTL) propulsion. One such concept is the "warp drive," which uses the warping of space-time to achieve FTL travel. This idea was first proposed by Miguel Alcubierre and has gained a lot of attention in the scientific community. However, there are still many challenges and limitations to be overcome in order for this concept to become a viable means of FTL propulsion.

Another theory that has been proposed in string theory is the "wormhole drive," which involves creating and utilizing wormholes to travel through space-time. This idea was first explored by Igor Novikov and has been further developed by other researchers. However, like the warp drive, there are many technical and theoretical challenges that need to be addressed before this concept can become a reality.

It's important to note that while these theories are based on string theory, they are still highly speculative and have not been proven or tested. The concept of FTL travel is still in the realm of science fiction and it may be some time before we have the technology and understanding to make it a reality. In the meantime, scientists continue to explore and refine these ideas, and who knows, perhaps one day we will have the capability to travel faster than the speed of light.