"We are basically learning about the basic laws of nature which can have deep philosophical and spiritual implications." "Eventually, these findings could even maybe have new technological applications down the road which is why blue-sky research is so important for society. They can help us to pinpoint the correct theory of quantum gravity," Calmet said. "Black holes are ideal systems to study the unification of Einstein's theory of gravity, general relativity, and quantum physics. Calmet believes that black holes may now be revealed as the ideal place to test such a theory. Hawking died before he could arrive at such a theory: one that encompasses the physics of the very large and that of the incomprehensively tiny through quantum gravity. That has spurred the search for a so-called "theory of everything" including a quantum theory of gravity to unite the two. The problem is when researchers try to unite those two very separate fields they won't connect. It could help solve one of physics' lingering problems.Ĭurrently, the best description scientists have of the universe at very small scales, such as particles like electrons, is quantum physics, while the most accurate description of the large scale and gravity is Albert Einstein's theory of general relativity. "Hawking showed that when quantum mechanics is added to general relativity, black holes are not black at all, but emit radiation, now called Hawking radiation," Calmet said.Ĭalmet and Kuipers' research, published in the journal Physical Review D, could have implications beyond the study of black holes. Just as Hawking suggested black holes have a temperature, Calmet and Kuipers say they have an associated pressure too. The work connects to the earlier research of Hawking, who died in March 2018, because the physicist was the first to suggest that black holes weren't simply inert dead stars from which nothing escaped. "If this interpretation is correct, and I don't see any way out at the moment, this means that black holes are much more complicated and interesting than naively imagined." Surprisingly, in our equation for the entropy of black holes, we have identified a term that can be interpreted as a pressure," Calmet tells Newsweek.
"When black holes were discovered in Einstein's general relativity, they were thought to be very simple objects. They then explored what they had chanced upon realizing an extra term in an equation represented pressure from a black hole. Professor Xavier Calmet of the Department of Physics and Astronomy at the University of Sussex, U.K., and Folkert Kuipers, a doctoral researcher in the University's School of Mathematical and Physical Science, stumbled upon the finding on Christmas Day 2020, while examining equations that determine the entropy-a measurement of a system's available energy-for black holes. 'Substantial' Number of Wandering Black Holes Could Be Roaming Galaxies.
Star Explodes After Black Hole Devours It From the Inside.Astronomers Spot Growing Double Supermassive Black Holes in Infant Universe.
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