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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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