The 'Hawking radiation' emitted by black holes may be able to carry information after all, a new solution to Stephen Hawking's famous paradox suggests.
One of physicist Stephen Hawking's most famous paradoxes may finally be solved: Black holes may in fact hang onto information about the massive stars that created them, new research indicates.
“[This research] is the final nail in the coffin for the paradox because we now understand the exact physical phenomenon by which information escapes a decaying black hole,” lead study author Xavier Calmet , a professor of physics at the University of Sussex, told Live Science via email. He suggests a modification to Hawking radiation that makes it “non-thermal” and thus capable of carrying information with it away from the final fate of the black hole.
Famous physicist John Wheeler described this lack of distinguishing characteristics by saying “black holes have no hair.” But, Calmet explained, while the final black hole is very simple, the original star that birthed it is a complex astrophysical object, consisting of a complicated amalgam of protons, electrons, and neutrons which come together to form the elements that build the chemical composition of that star.
Finding the black hole's 'hair'Along with his colleague Steve Hsu , a professor of theoretical physics at Michigan State University, Calmet has been working since 2021 to crack Hawking’s paradox.
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