50 Years Later... We Solved It

 

Black holes the giant all-consuming

 monstrous voids in space have been one

 of the most intriguing objects of study ever since their discovery nearly five decades ago Stephen Hawking described a black hole paradox the most famous paradox in physics that is bedeviled physicists ever since two new

 published studies however show that there may be an answer to the paradox after all and it might have something to do with something called quantum hair welcome to Science Reads and in today's article we'll take a close look at how an independent group of physicists believe they may have finally solved Hawking's black hole paradox outer space is filled with some truly fascinating objects but black holes just happen to take the cake for being the strangest ones out there most often birthed from the collapse of gigantic stars in 1916 Albert Einstein was the

 first to predict their existence

 in his general theory of relativity but the official term black hole was only coined years later in 1967 by American astronomer John Wheeler one of the most remarkable

 features of nature these black holes which are extremely dense have immensely strong gravitational attraction and from whose grasp even light is unable to escape they existed only theoretically up until 1971 which is when the first physical black hole was actually discovered fast forward to 2019 when the event horizon telescope released the first ever image of a black hole right at the center of the galaxy m87 we've come a long way in our knowledge of black holes yet there remains something that has kept physicists scratching their heads for decades and towards our understanding of reality the infamous black hole information paradox somewhere between the two greatest theories ever constructed in physics there seems to be a tiny unexplainable flaw that has garnered decades worth of study and debate firstly according to Einstein's general theory of relativity the gravity of a black hole is extremely intense to the point that nothing can escape it black holes were seen as exceedingly simple despite the complicated stuff that fell into them but they seemed to lock all that information away forever but physicists would soon discover how wrong they were and how extremely complicated

 black holes actually are when Stephen Hawking was studying black holes he and his team of colleagues discovered that black holes aren't necessarily black but in fact released radiation and eventually they evaporated entirely through a process which we now know is hawking radiation the radiation from a black hole will carry away energy so the black hole will lose mass and shrink eventually it seems the black hole will evaporate completely and disappear but this of course posed a rather huge problem hawking radiation doesn't carry any information itself as by definition it isn't able to do so so that leaves us with a burning question when a black hole evaporates and disappears from the universe where does all that locked up information go this right here is the black hole information paradox and over the years it's become the puzzle that every physicist dreamed of solving normally information falling into a radiating object such as a star would be represented in the messy spectrum of colors that shoot from its surface or at the very least it's left behind after it dies but if hawking's radiation theory is correct this is not the case for black holes which will eventually just evaporate out of existence this of course violates the big rule in quantum physics which states that information that makes a particle a particle is conserved in the universe from moment to moment for nearly half a century researchers have been tinkering with various ideas and mathematical calculations for a potential solution to explain how the information could stay within the universe without violating any of its laws or having to bend existing rules or theories throughout the years there have been several bold attempts made at solving this great paradox but few have come close to being potentially true until now new studies from a group of independent physicists now suggest that our universe's mysterious black holes might actually be hairy yes you heard that right quantum hair as they're calling it could quite possibly be the answer to the paradox in the first paper that was published in the journal physical review letters the researchers demonstrated that black holes are way more complex than we originally thought and have gravitational fields that hold the key information about how they were formed matter that collapses into a black hole would then leave a mark in its gravitational field an imprint being referred to as quantum hair as per hawking's black hole paradox black holes evaporate and along with that destroy any information about what informed them which goes against fundamental quantum mechanics which states that any process in physics can be mathematically reversed as opposed to what john wheeler said about black holes in the 1960s where he suggested that black holes have no hair otherwise known as the no hair theorem this newly discovered quantum hair actually provides a way for information to be preserved as a black hole collapses the new studies have in fact found additional semi-classical effects and new configurations that are still permissible as per Einstein's theory which hawking may not have included in his study in short the new study proposes that black holes are really just giant fuzz balls having a bit of fuzz would actually give black holes a path for their quantum information to remain stuck within the universe even if the black hole itself tends to fade away over time the work that theorists now have is to find ways in which they can make the laws that tell space and time how to curve to mesh with the laws that tell particles to share their information and that is no easy task as per this solution it applies quantum thinking to gravity in the form of theoretical particles called gravitons the study team through a series of logical steps demonstrated a reasonable model for how the information within the black hole could still remain connected with the surrounding space across its event horizon or line of no return as slight perturbances of the black hole's gravitational field or quantum hairs in

 essence the study shows that black holes actually have external features or hair that allows an outside observer to tell what's going on inside the black hole this is of course in direct contrast to the no hair theorem where you can only tell three things about a black hole from the outside its mass angular momentum and electric charge professor calmed in his team from Italy and the us concluded that according to their calculation objects that fall into a black hole leave imprints on a black hole's gravitational field so that in theory at least they do preserve some of those objects information so it's theoretically possible for an observer to study the hairs on a black hole to piece together information about what has fallen into the massive void according to professor Xavier kalmat from the university of Sussex's school of mathematical and physical sciences who worked on the study it was generally assumed in the scientific community that resolving this paradox would require a huge paradigm shift in physics forcing the potential reformulation of either quantum mechanics or general relativity having to change either of these would mean so many things that we know and understand about the universe and its workings wouldn't make sense at all since these form the basic foundation for so many theories and laws of course not everyone is quite convinced just yet having been the most debated and researched paradox in physics for half a century it's a given that there'll be thorough analysis and dissecting of the study to see if researchers have in fact cracked the decades-long code to the black hole information paradox many argue that the study uses too many assumptions quantum gravity and black hole expert Tom Hartman an associate professor at Cornell University seems to believe that the study does not in any way make significant progress on the black hole paradox so the mystery is uh understanding the origin of this complexity understanding what it is that black holes are made of and what gives you this enormous entropy professor calmed himself conceded that it's a big claim that would take the scientific community some time to come to terms with theoretical physicist at Imperial College London professor Toby Wiseman stated that the study was indeed a good bit of work with the only pressing drawback then it doesn't show that the entirety of the information that falls into a black hole can be recovered i would say you have to have a very good reason a specific reason to say i don't believe it i don't think you can just throw up your hands and say ah it's obviously wrong as a theory the study is actually based on quite a solid framework and there's no doubt that this will be a very important addition if not proven true to the study of black holes and perhaps one of the closest attempts to solve the information paradox if there is one thing for certain everyone can agree that the two universal theories of quantum mechanics and gravity which have never been reconciled would have to somehow come together in order to once and for all resolve the paradox so what do you think has the most famous paradox finally been solved let us know in the comments and don't forget to smash that like button and subscribe to the channel so you don't miss more articles from us thanks for reading see you next time