“Hairy” black holes – the key to Hawking’s paradox?

Almost half a century has passed since Stephen Hawking discovered one of the most important paradoxes in physics. For half a century, researchers have been tearing their hair out trying to solve this riddle, which over the years has led some to question two of the most fundamental laws of physics: Einstein’s laws of general relativity and the laws of quantum theory. Mechanics.

Since the publication on Thursday, March 22, two studies in journals Physics letters B as well as Physical Review Letters, researchers around the world who have been busy solving the so-called “information paradox” until now will finally see that their scalps are spared. Astrophysicist Xavier Calmette of the University of Sussex, Roberto Casadio of the University of Bologna and Stephen Hsu of the University of Michigan claim to have solved a well-known problem by demonstrating that black holes have a property called “quantum hair”. The case is clearly capillary. If these results turn out to be correct, it will be a huge step forward in theoretical physics.

Black holes were originally thought to be “bald”

From the 1916 announcement of the theories about these extreme stars by Karl Schwarzschild and the first results demonstrating their existence by Robert Oppenheimer twenty years later, black blacks have been considered among the simplest in the universe. This is why, in the 1960s, several physicists, especially in the Soviet world, formulated the “hairless black hole theorem” or “baldness theorem.” This means that a black hole is described by only three parameters: mass, electric charge, and angular momentum (or spin). In short, he does not have “hair”, which is considered one of the signs that distinguish one person from another. Because whatever its method of formation and the nature of what was used to form it, it absorbs and “erases” all the characteristics of the matter that enters it.

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