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Is there a clue to an “anti-universe” right next to us, where time goes back? -Information Technology

Sunday, March 20, 2022 15:25 PM (GMT+7)

Some new scientists have come up with arguments to support the belief that there is an “anti-universe” right next to our universe. There, time goes backwards. But will we ever get to that universe?

There have been many theories about life beyond Earth, about the changes of space and time in the vast universe. And now, scientists have suggested that there could be an “anti-universe” where time goes backwards.

This theory has just been published in the scientific journal Annals of Physics. The researchers explain that, in nature, there are always fundamental symmetries, such as charge, parity, and even time. This basic symmetry is called CPT symmetry (according to the English abbreviations of the three concepts just mentioned).

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There are fundamental symmetries in nature. Illustration: Shutterstock.

Physical interactions generally obey this “law of symmetry”, but a simultaneous violation of those laws has never been seen. Therefore, the researchers suggest that, since this symmetry is true for interactions, it should also be true for the universe as a whole.

That is, in order for our universe to be balanced and for symmetry to be true, there could be a universe that is our mirror image.

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Is it possible to have a universe that is symmetric to ours? Illustration: Harper Collins.

What’s more, the existence of an “anti-universe” could explain dark matter (a hypothetical matter in the universe, whose composition is not yet understood). Currently, scientists know only 3 types of neutrinos (read as neutrinos, which are elementary particles, carrying no electrical charge and almost zero mass, rarely interacting with ordinary matter). ), and all three of them rotate in the same direction to the left. Physicists have always wondered, why can’t neutrinos turn to the right, but they’ve never found them. So an “anti-universe” would have such a neutrino (spinning right), and it would only interact with the universe through gravity – similar to dark matter – not physics experiments. won’t “detect” it.

According to Live Science, if the above hypothesis is correct, then the number of rotating neutrinos should be enough to account for the dark matter that physicists have detected.

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Neutrinos are known as the most “shady” elementary particles. Artwork: Sandbox Studio, Chicago with Ana Kova.

So if that parallel universe – or “anti-universe” – does exist, how do we get there? What will we see, who will we meet there? Scientists think that we will never be able to approach this “anti-universe”. However, it is possible to do experiments involving neutrinos (quite confusing for those who do not study Physics) to see if the hypothesis is correct.

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There may be experiments that confirm the existence of the “anti-universe”. Illustration: Learning Mind.

In addition, according to scientists, the “anti-universe” did not have a rapid expansion. And the bulge has an impact on space-time, causing gravitational waves to pervade the universe. But in parallel universes this wave does not exist. So if, through experiments, gravitational waves are not found, it is safe to believe that the hypothesis of a parallel, symmetrical universe for us is correct.

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