And that’s how we’ll find out if our universe is the only one out there...
Time is malleable -- it is sometimes perceived as fleeting, or stretching like it’ll never end. But its property of having a past, present and future is, to us humans, a very real construct.
Even though we know so much about time, that we define so much of our lives against it, we are yet to become the master of this quantity. While the allure of time travel is in itself tantalizing, it has always been in the realm of science fiction, never science fact. Until now.
Physicists have now suggested, through a new study, that parallel universes exist and affect one another. According to reports, Professor Howard Wiseman and Dr Michael Hall from Griffith University's Centre for Quantum Dynamics, and Dr Dirk-Andre Deckert from the University of California claim parallel universes are a reality and influence one another through quantum mechanics.
It is this theory of multiple timelines in several universes that could prove to be the cornerstone of making time travel conceivable. If proven true -- fantastic as it sounds -- time travelers could visit Earth, and every imaginable scenario in our lives could be replicated in a parallel universe.
The theory is called ‘Many Interacting Worlds’, and it provides a whole new perspective on the ideas underpinning quantum theory, the complex yet increasingly practical branch of physics. It suggests that each universe forks into several universes every time a quantum measurement is made. The scientific team claims that the idea of a parallel universe is no longer the mainstay of science fiction -- it is predicted that this ‘intense speculation’ could someday help prove the theory of multiverses.
Wiseman explained that these parallel universes could be touted as ghost universes, that they exist in the same space as our universe but are invisible because they interact with ours under very strict conditions. When these conditions interact they are minute, using a force that acts between similar particles in each universe, which is why these forces cannot be felt or noticed in our reality.
This theory leaves us with a thought: is our universe just one of many enormous worlds out there, with some identical to our reality and others, totally different? The answers may be available to us sooner than we believe.
“The idea of parallel universes in quantum mechanics has been around since 1957. All possibilities are therefore realized — in some universes the dinosaur-killing asteroid missed Earth. In others, Australia was colonized by the Portuguese. But critics question the reality of these other universes, since they do not influence our universe at all. On this score, our ‘Many Interacting Worlds’ approach is completely different, as its name implies,” says Professor Howard Wiseman.
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