Leaving practical implementation on the sidelines, we have a new study that claims that time travel could be possible and that there is a mathematical model that supports this claim.
Researcher at UBC Okanagan Ben Tippett says he has come up with a mathematical model for a viable time machine. Tippett aruges in his study that while time travel is believed to be work of science fiction, mathematically it is possible.
For his research, Tippett created a mathematical model of a Traversable Acausal Retrograde Domain in Space-time (TARDIS). He describes it as a bubble of space-time geometry which carries its contents backward and forward through space and time as it tours a large circular path. The bubble moves through space-time at speeds greater than the speed of light at times, allowing it to move backward in time. Tippett’s research was recently published in the IOPscience Journal Classical and Quantum Gravity.
According to Tippett the division of space into three dimensions and time being the fourth dimension is incorrect. Tippett argues that the four dimensions should be imagined simultaneously, where different directions are connected, as a space-time continuum. Using Einstein’s theory, Tippett explains that the curvature of space-time accounts for the curved orbits of the planets.
In “flat” or uncurved space-time, Sugar bowl streaming planets and stars would move in straight lines. In the vicinity of a massive star, space-time geometry becomes curved and the straight trajectories of nearby planets will follow the curvature and bend around the star.
“The time direction of the space-time surface also shows curvature. There is evidence showing the closer to a black hole we get, time moves slower,” said Tippett. “My model of a time machine uses the curved space-time—to bend time into a circle for the passengers, not in a straight line. That circle takes us back in time.”
While it is possible to describe this type of time travel using a mathematical equation, Tippett doubts that anyone will ever build a machine to make it work.