For a long
time now researchers have believed that when a black hole dies, everything
inside is completely gone forever. But a recent study proposes that information
and everything else sucked into the event horizon isn't actually wiped out -
but gradually leaks out throughout the later stages of the black hole's
evaporation. Scientists united Hawking radiation with mathematical models and
high-performance computers to generate a simulation displaying when information
goes in and leaves a black hole.

The new
study was published in the journal APS Physics few days ago. It was Stephen
Hawking, some forty years ago, who proposed that black holes evaporate and
shrink because they emit radiation. After that several question arose about the
information and everything else inside the black hole – specifically where this
all information goes when the black hole dies.

After many
calculations, physicists suggested everything simply vanishes inside the black
holes but this violates the very essential laws of physics.

Chris Adami
and his colleague Kamil Bradler, University of Ottawa, have developed a new
theory according to which information contained slowly leaks out while the
black hole is evaporating.

This study
counteracts a pretty old concept that it was impossible for all quantum
information to stay secret inside the black hole even though it shrunk to
minute sizes – meaning everything present inside the black hole would be
destroyed.

So Chris
Adami and his colleague Kamil Bradler just used Hawking's theory 'with a little
twist'.

By means of mathematical tools and high-performance computers, scientists were able to simulated black holes over long periods of time and trace information outside the holes. Adami said:“To perform this calculation, we had to guess how a black hole interacts with the Hawking radiation field that surrounds it. This is because there currently is no theory of quantum gravity that could suggest such an interaction. However, it appears we made a well-educated guess because our model is equivalent to Hawking's theory in the limit of fixed, unchanging black holes. While our model is just that—a model—we were able to show that any quantum interaction between black holes and Hawking radiation is very likely to have the same properties as our model”.

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