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The paradox of the disappearance of information in a black hole - an explanation is offered

A group of American physicists offered an explanation for the well-known paradox of the disappearance of information in a black hole . Scientists have published their calculations in the journal Physical Review.

The disappearance of information in a black hole is a phenomenon that must occur in a black hole if it really obeys the thermodynamic description proposed by Stephen Hawking in 1975. However, this phenomenon has so far been incompatible with the general principles of quantum mechanics.

According to Hawking, information in the form of quantum particles ( Hawking radiation ) is constantly evaporating from a black hole. This means that the situation is potentially possible: if we throw a body into a black hole, the mass of the black hole will increase. After some radiation (its character does not depend on the nature of the body that fell into the hole), the mass will again return to its previous value. Since the properties of a black hole are described by only one parameter — its mass, it turns out that the black hole destroyed the information that entered it .

American physicists explained the paradox of the disappearance of information through the curvature of space-time. For an external observer, the horizon of a black hole event will be formed for an infinitely long time, and from the position of bodies falling into a black hole, time will slow down to almost zero. Thus, for an external observer, an object falling into a black hole will never fall there .
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via Press Esc

Source: https://habr.com/ru/post/11195/


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