ABC of Spain 2 / If we break a document into pieces, there will always be a way to recompose and access, therefore, the information it contained. If we fragment any other object, even if we burn, be possible to “interrogate” later to reveal to us all or part of their information. But if we send information into a black hole, it will be lost forever.
This is, at least, what physicists have been ongoing for decades. Black holes are the last frontier, the point of no return, entities absorbing material (and information), and evaporate instantly and leaving no what there was ever inside track.
However, new research reveals that this view may not be entirely correct. A black hole, in fact, can swallow matter, but as just demonstrated a team of physicists at the University of Buffalo, does not destroy information that devours. The findings, recently published in Physical Review Letters, opens an entirely new way to “see” what happens inside these enigmatic space objects.
“In our work Dejan Stojkovic declares, first author of article- information is not lost after entering a black hole. Just do not go away. “
The study states that interactions between particles emitted by black holes can reveal information about what’s inside of them. For example the characteristics of the object from the black hole formed, or of matter and energy that lies beyond the event horizon, the point from which not even light can come back.
According to Stojkovic, is an important discovery because even physicists thought that information was not lost inside black holes are facing great difficulty of mathematically demonstrate the process. But the new study included very specific and explicit calculations showing in how information can be stored.
Paradox of information loss research indeed an important step towards resolving the ” paradox of information loss “, a problem that has plagued scientists for at least four decades since Stephen Hawking first proposed that black holes radiate energy and therefore will evaporate over time set. Hawking’s idea was a big problem for physics, because it meant that the information contained by a black hole is lost forever when the black hole eventually disappear. And that’s a violation of the laws of quantum mechanics, which state that information should always be preserved.
In the last decade of the seventies, Hawking suggested that black holes were capable of radiating particles, and the energy lost during this ongoing process cause progressive “shrinking” of black holes and eventually process, their total disappearance. Hawking also concluded that emitted by a black hole (which in his honor “Hawking radiation” was called) particles could not provide some of what was inside track, which meant that any information fell into a black hole completely lose a once it evaporate.
Although Hawking later said that he was wrong and that information could escape from black holes, the issue of whether and how you can retrieve information from a black hole has remained subject of acrimonious debate.
And this is where the work of Stojkovic, who at first seems pretty clear the story goes. In fact, instead of observing only the particles emitted by the black hole, the study also takes into account the subtle interactions between these particles. By doing so, researchers have realized that it is possible for an observer to remain outside a black hole information about what happens inside.
Exchange “mediators” The interactions between particles can range from gravitational attraction exchange “mediators”, for example photons, including.
It has long been known that such relationships exist, but most scientists dismissed by the insignificant considering them. Something that has not made Stojkovic. “These correlations says the physico always been ignored in the calculations because they thought they were too small and were not able to make a significant difference. But our calculations show that although correlations start out very small, growing in the time and become large enough to change the outcome “
Information ABC of Spain 2 .
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