2001: A Space Odyssey

Time travel could be possible, a team of physicists have claimed, according to a report in the New York Post. The researchers have suggested that parallel universes exist and affect one another.

Moreover, there are multiple timelines in the multiple universes; therefore, time travel is conceivable.

Scientists from the Griffith University's Center for Quantum Dynamics and the University of California came up with the Many Interacting Worlds Theory that gives a whole new perspective on the ideas underlying quantum theory, the New York Post reported.

According to physicist Howard Wiseman, the idea of parallel universes has existed in quantum mechanics since 1957 -- called the Many-Worlds Interpretation, which suggests that every time a quantum measurement is made, each universe bifurcates into a group of new universes.

"All possibilities are realized therefore - in some universes the dinosaur-killing asteroid missed Earth. In others, Australia was colonized by the Portuguese," adds Wiseman, as reported by The Sun.

According to the New York Post, if there really are multiple, interacting universes, then it would be possible for time travelers to visit Earth, and every imaginable scenario would be played out in a parallel universe at some point.

The team's "Many Interacting Worlds Theory" provides a whole new perspective on the ideas underpinning quantum theory, a notoriously complex strand of physics.

Wiseman said: "The idea of parallel universes in quantum mechanics has been around since 1957.

"In the well-known 'Many Worlds Interpretation,' each universe branches into a bunch of new universes every time a quantum measurement is made."

According to the theory, our universe is just one of many enormous worlds, with some identical to our reality and others completely different.

The Express reports that the worlds are all real, and all on the same timeline, but interact when they essentially bump into each other.

Hall believes that the group's sensational theory fits with current scientific understanding, offering a new perspective rather than rewriting the physics rule book completely.

He said: "The beauty of our approach is that if there is just one world, our theory reduces to Newtonian mechanics, while if there is a gigantic number of worlds, it reproduces quantum mechanics.

"In between it predicts something new that is neither Newton's theory nor quantum theory.

"We also believe that, in providing a new mental picture of quantum effects, it will be useful in planning experiments to test and exploit quantum phenomena."

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