the black hole Created in laboratory confirms to Stephen Hawking's theory, new

Published: 25.1.2019
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Long time in the world of astrophysics was considered that force of an attraction of black holes is absolute. That is nothing, even light, is capable to avoid it as soon as got to the horizon of its events. Then, in 1974, the little-known young, but talented physicist by the name of Stephen Hawking made bold speculation that according to features of quantum physics black holes actually have to radiate hardly noticeable volumes of electromagnetic radiation (called Hawking's radiation subsequently) and to be reduced slowly in sizes. The other day the Israeli physicist Jeff Steynkhauer said that he proved this theory of Hawking by means of the acoustic black hole created by him in vitro.

In the theory Hawking foretold that particles of light can avoid the horizon of events. But in an experiment Stenkhauera the part of these particles was assigned to phonons (an elementary quasiparticle of a sound). As a result of an experiment the scientist noted that phonons are capable to avoid a funnel attraction. About the results of observations the researcher in detail shared on pages of the scientific magazine Nature Physics.

Results of observations of Steynkhauer are important not only because they actually confirm Hawking's theory, but also because they can help us to understand better the phenomenon known as information paradox. This known contradiction is a cornerstone in physics (according to which information cannot be completely lost) and our present theories about black holes (if they are slowly narrowed as Hawking assumes, then information is lost within this process). If we have more proofs that Hawking's radiation really exists, more means at us will be that for permission of information paradox.

George Unru, the physicist, the first offered carrying out similar experimental observations, agrees with Vaynfertner:

"But he does not prove existence of radiation of Hawking at astrophysical black holes".

The scientist also noted that the avoiding attractions of a funnel of a particle are in a condition of complexity with the particles which are at edges of a cloud. In other words, their physical properties completely coincide. This so-called condition of quantum complexity is one of key features of radiation of Hawking. According to the theory, this radiation is created when particles and antiparticles connect in couple on border of a black hole (process very usual for quantum mechanics). The horizon of events at the same time as the knife, cuts this couple that leads to suction of one particle in a black hole while other particle becomes that radiation of Hawking avoiding force of an attraction of a black hole.

"This experiment if to consider all facts, really delightful", & #8212; the theorist and the practician Silke Vaynfertner speaks.

"The interests of people in black holes and Hawking's radiation are more connected with desire to check new theories and laws in physics, than with desire to learn more about black holes [& #8230;] Confirmation of existence of radiation of Hawking & #8212; it is a step towards to a possibility of examination that these new laws represent", & #8212; Steynkhauer in an interview to the Business Insider edition shares.

"Serious opening demand serious confirmations. Anyway I agree that it is very beautiful experiment. Many thought that similar experiments were made at least 10 last years, but Steynkhauer made it the first".

Anyway, physicists is not sure yet that Steynkhauer's experiment in fact proves existence of radiation of Hawking. Eventually, it is simulation black holes. No matter, as far as it is exact, all this simulation.

Instead of water or light as Wednesday for carrying out an experiment Steynkhauer used sound waves. At first it cooled a cloud of atoms of rubidium to absolute zero that led them to a condition of condensate to Bosa & #8212; Einstein. Then Steynkhauer used lasers, with their help in a cloud a peculiar funnel in which center the speed of the movement of atoms became higher than the acoustic speed was created.


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