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Scientific news has reported that final paper of Stephen Hawking has been published. The work is about whether information can be retrieved from a black hole or whether it is lost forever, better to say what happens to information when objects fall into black holes.
The final paper of Stephen Hawking was finished the days before Hawking’s death in March. His colleagues have said that he gave an “enormous smile” when he was told the project had been a success. The writing which is called “the information paradox” has been written up by his colleagues at Cambridge and Harvard universities and posted online.
While Hawking’s last paper does not solve the mystery of the information paradox, his co-authors say they “hope we have paved the way, and we are continuing our intensive work in this area.”
Malcolm Perry, a professor of theoretical physics at Cambridge and a co-author on the paper, Black Hole Entropy and Soft Hair, said the information paradox was “at the center of Hawking’s life” for more than 40 years. “The difficulty is that if you throw something into a black hole it looks like it disappears,” he added. “How could the information in that object ever be recovered if the black hole then disappears itself?”
“We don’t know that Hawking entropy accounts for everything you could possibly throw at a black hole, so this is really a step along the way,” said Perry. “We think it’s a pretty good step, but there is a lot more work to be done.”
Let’s remind that Stephen William Hawking was an English theoretical physicist, cosmologist, and author, who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge at the time of his death. He was the first person that set out a theory of cosmology explained by a union of the general theory of relativity and quantum mechanics. Hawking died on 14 March 2018 at the age of 76.
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