Using the principles of Quantum Travel, there is a theoretical possibility for time travel, where instead of folding space-time across the axis of space, you fold across the axis of time. The preferred solution to time travel is through Quantum Superposition, where any changes in the past lead to parallel timelines and branches off. This belief lies similar to Deutsch's prescription, and if tested, his solution to the Grandfather Paradox could be proven correct, where the time traveller reenters a new timeline where he isn't supposed to exist.
The leading expert on Quantum Superposition and time travel is a man named Dr Clyde Fredricks, though the only way to comprehend his research is by reading his many papers due to Dr Fredricks being a missing persons.