[The Higgs singlet] may have a unique ability to jump out of the normal three dimensions of space and one dimension of time that we inhabit, and into a hidden dimension theorized to exist by some advanced physics models. By traveling through the hidden dimension, Higgs singlets could re-enter our dimensions at a point forward or backward in time from when they exited.
One of the attractive things about this approach to time travel is that it avoids all the big paradoxes, Weiler said. Because time travel is limited to these special particles, it is not possible for a man to travel back in time and murder one of his parents before he himself is born, for example. However, if scientists could control the production of Higgs singlets, they might be able to send messages to the past or future.