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Scientists: Detecting Mini Black Holes May Indicate Existence of Parallel Universes

By  | Science.News

An international team of researchers says that parallel universes may now be discovered through the Large Hadron Collider (LHC), the world’s largest particle smasher. The discovery rests upon whether scientists will be able to generate and detect mini black holes at a predicted energy level.

In a study published in the Physics Letters B., the team said the LHC might be able to smash particles at that energy level, given its unparalleled prowess. If scientists detect a mini black hole, that will indicate the existence of extra dimensions – and, by extension, parallel universes.

Previous attempts at detecting mini black holes

Physicists had tried to detect mini black holes before but repeatedly came up empty-handed. This was expected if there really were only four dimensions – three of space and one of time – since the energy required to produce a mini black hole in a four-dimensional universe is much bigger than the energy that could be achieved at the LHC.

However, if extra dimensions exist, the team said that the energy required to produce a mini black hole will be much lower, dropping to levels achievable at the LHC. This is because gravity in the universe may somehow leak into the extra dimensions, explained co-author Mir Faizal of the University of Waterloo in Canada.

Meanwhile, scientists had not detected a mini black hole because they relied on the current gravity model to make their calculations. Albert Einstein’s general theory of relativity works when applied to large, cosmic objects like stars and planets but falls apart when used for explaining nature at the molecular level. (Related: The Higgs boson ‘God Particle’ discovery explained in the context of conscious cosmology.)

In particular, the theory states that gravity is caused by the curving of space and time. But the researchers pointed out that the geometry of space and time gets deformed at the Planck scale, which is several times smaller than an atom and is where mini black holes are thought to exist.

Finetuning calculations to detect mini black holes

In the study, the researchers used a new theory, called gravity’s rainbow, to account for this modification of space-time geometry. Gravity’s rainbow states that space and time curve differently for particles of different energy.

Using the new model, they predicted that a mini black hole may form at energy levels of at least 9.5 tera-electron-volts (TeV) in six dimensions and 11.9 TeV in 10 dimensions. So far, scientists only searched for a mini black hole at energy levels below 5.3 TeV.

“We have calculated the energy at which we expect to detect these mini black holes in gravity’s rainbow,” said Faizal.

The LFC could achieve energy levels of up to 14 TeV, so future endeavors to generate a mini black hole based on the study’s calculations are feasible. Detecting a mini black, in turn, will support several ideas, including parallel universes, extra dimensions, and gravity’s rainbow.

However, the researchers clarified that when they say “parallel universes,” they’re not referring to a “multiverse,” or the many-worlds interpretation of quantum mechanics in which every possibility in the universe is realized. “What we mean is real universes in extra dimensions,” said Faizal. Only gravity can leave the universe and enter these extra dimensions, he added.

But could a mini black hole swallow the planet? After all, the gravitational pull of black holes is so strong that not even light could escape upon entering their fold. That’s unlikely, according to experts. Deceased theoretical physicist Stephen Hawking calculated that all black holes should lose mass over time. This means that mini black holes should die within a fraction of a second before they could gobble up a significant amount of matter. (Related: Astronomers have, for the first time, detected matter falling into a black hole at 30% of the speed of light.)

And it’s still possible that parallel universes don’t exist at all. If a mini black hole isn’t detected at the predicted energy levels, one of three possibilities could be at play, according to corresponding author Mohammed Khalil of Alexandria University in Egypt. One, extra dimensions and parallel universes don’t exist. Two, they exist but are much smaller than expected. Three, scientists need to reexamine gravity’s rainbow.

Whatever the results, people all over the world will surely be watching.

Read more articles about mind-boggling cosmic experiments at Cosmic.news.

Sources include:

ScienceNatures.com

Phys.org

LiveScience.com




Detection of Mini Black Holes At the LHC Could Indicate Parallel Universes In Extra Dimensions

By Lisa Zyga | Phys.org

Credit: CERN

Credit: CERN

(Phys.org)—The possibility that other universes exist beyond our own universe is tantalizing, but seems nearly impossible to test. Now a group of physicists has suggested that the Large Hadron Collider (LHC), the largest particle collider in the world, may be able to uncover the existence of parallel universes, should they exist.

In a new paper published in Physics Letters B, Ahmed Farag Ali, Mir Faizal, and Mohammed M. Khalil explain that the key to finding parallel universes may come from detecting miniature black holes at a certain energy level. The detection of the mini black holes would indicate the existence of extra dimensions, which would support string theory and related models that predict the existence of extra dimensions as well as parallel universes.

“Normally, when people think of the multiverse, they think of the many-worlds interpretation of quantum mechanics, where every possibility is actualized,” Faizal told Phys.org. “This cannot be tested and so it is philosophy and not science. This is not what we mean by parallel universes. What we mean is real universes in extra dimensions. As gravity can flow out of our universe into the extra dimensions, such a model can be tested by the detection of mini black holes at the LHC. We have calculated the energy at which we expect to detect these mini black holes in gravity’s rainbow [a new theory]. If we do detect mini black holes at this energy, then we will know that both gravity’s rainbow and extra dimensions are correct.”

The search continues

In some ways, this idea is not new. The LHC has already been trying to detect mini black holes, but has come up empty-handed. This is what would be expected if there are only four dimensions, since the energy required to produce black holes in four dimensions would be much larger (1019 GeV) than the energy that can be achieved at the LHC (14 TeV).

However, if extra dimensions do exist, it is thought that they would lower the energy required to produce black holes to levels that that the LHC can achieve. As Faizal explained, this happens because the gravity in our universe may somehow flow into the extra dimensions. As the LHC has so far not detected mini black holes, it seems that extra dimensions do not exist, at least not at the energy scale that was tested. By extension, the results do not support string theory or parallel universes, either.

In their paper, Ali, Faizal, and Khalil offer a different interpretation for why mini black holes have not been detected at the LHC. They suggest that the current model of gravity that was used to predict the required energy level for black hole production is not quite accurate because it does not account for quantum effects.

According to Einstein’s general theory of relativity, gravity can be thought of as the curvature of space and time. However, here the scientists point out that this geometry of space and time responsible for gravity gets deformed at the Planck scale. They have used the new theory of gravity’s rainbow to account for this modification of the geometry of space and time near the Planck scale, where the mini black holes are predicted to exist.

Using gravity’s rainbow, the scientists found that a little bit more energy is required to produce mini black holes at the LHC than previously thought. So far, the LHC has searched for mini black holes at energy levels below 5.3 TeV. According to gravity’s rainbow, this energy is too low. Instead, the model predicts that black holes may form at energy levels of at least 9.5 TeV in six dimensions and 11.9 TeV in 10 dimensions. Since the LHC is designed to reach 14 TeV in future runs, these predicted energy requirements for black hole production should be accessible.

Many interpretations

If mini black holes are detected at the LHC, then it would arguably support several ideas: parallel universes, extra dimensions, string theory, and gravity’s rainbow—with these last two having implications for a theory of quantum gravity. Most obviously, a positive result would support the existence of mini black holes themselves.

“If mini black holes are detected at the LHC at the predicted energies, not only will it prove the existence of extra dimensions and by extension parallel universes, but it will also solve the famous information paradox in black holes,” Ali said. Solving the paradox is possible because, in the gravity’s rainbow model, mini black holes have a minimum radius below which they cannot shrink.

However, if black holes are not detected, the scientists will need to reexamine their understanding of these ideas.

Read the rest of the article at phys.org…