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The experiment shows that Stephen Hawking's black hole prediction was correct



Physicists have been working on an experiment in the lab that has to do with black holes. The experiment has confirmed that a prediction that the late Stephen Haking made about black holes was correct. The black hole that the team created in their laboratory is not the same as that seen in space.

Black holes in space have a gravity so immense that light can not escape. The black hole made in the laboratory was built using something called Bose-Einstein condensate and its point of no return does not prevent the light from escaping, but prevents the sound from escaping.

The Hawking theory that the team says their experiment verifies is called Hawking radiation. The team says that Hawking realized when trying to apply the physical laws that regulate heat in black holes, the black hole must emit radiation from its surface. The challenge is that astronomers can not see a black hole close enough to prove or disprove the theory. That impossibility has led scientists to create badogs of black holes in laboratories.

This was done by trapping 8,000 rubidium atoms in a focused laser beam to create an elongated Bose-Einstein condensate. This is a system of ultra-cold atoms where strange quantum physical phenomena are visible on larger scales and are often used for this type of experiment. A second laser increases the potential energy on one side of the condensate. A sharp transition separates the densest area, which is considered the outside of the black hole, and the less dense zone is considered the interior of the black hole.

In one region of the experiment, the sound is faster than the speed of the flow of the rubidium atoms, but in the other, the speed of sound is slower, which allows the sound waves only to move away from the acute transition . This is how light behaves in a black hole. The team discovered that within the event horizon of its black hole created in the laboratory, the Hawking radiation signal was a correlation between sound waves, both outside and inside its black hole. One of the researchers says that, seeing him, Hawking was right.


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