RTNEWS Is life a dream? Found evidence that the universe can be a great hologram A team of physicists has provided some of the clearest evidence that our universe, everything we see and touch, might actually be a huge hologram, a mere projection. Everything about this topic cosmos A strange object orbiting a black hole revives the scientific debate Surprising appearance of a huge hole in the surface of the Sun Video: European scientists pose as gods and create their own universe In 1997, the Argentine theoretical physicist Juan Maldacena proposed a striking model of the universe according to which gravity arises from infinitesimal, thin and vibrating strings and can be reinterpreted in physical terms. So, this world of mathematically intricate strings there in ten spatial dimensions, would just be a hologram: the real action would develop into a more simple and where there is no gravity plane cosmos. The idea of Maldacena excited physicists, among other reasons because resolve apparent inconsistencies between quantum physics and the theory of Einsteins gravity. Thus, the Argentine gave scientists a mathematical Rosetta stone , a duality , which allowed them to troubleshoot a model that seemed to have no answer on the other, and vice versa. But despite the validity of his ideas still had not been able to find any rigorous proof of his theory. According to an article published in the journal Nature, now Yoshifumi Hyakutake, University of Ibaraki (Japan) and colleagues have provided two of his studies, but a real test, at least a convincing proof that the conjecture Maldacena is true. test In one study, Hyakutake calculated the internal energy of a black hole, the position of its event horizon (the boundary between the black hole and the rest of the universe), its entropy and other properties based on the predictions of the theory string, and to the effects of so-called virtual particles appearing continuously in and out of existence. In the other, he and his colleagues calculated the internal energy of the corresponding universe of lower dimension without gravity. The two computer calculations coincide. It seems to be a correct calculation, says Maldacena, while emphasizing that the findings are an interesting way to demonstrate many ideas of quantum gravity and string theory. Have numerically confirmed, perhaps for the first time, something that we were pretty confident but it was still a guess: the thermodynamics of certain black holes may be reproduced from a lower dimensional universe, says Leonard Susskind, a theoretical physicist at the University Stanford, California, who was one of the first theorists to explore the idea of holográfi universes
Posted on: Sat, 03 Jan 2015 16:41:53 +0000
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