Simulations back up theory that Universe is a hologram
A ten-dimensional theory of gravity makes the same predictions as standard quantum physics in fewer dimensions.
10 December 2013
In 1997, theoretical physicist Juan Maldacena proposed that an audacious model of the Universe in which gravity arises from infinitesimally thin, vibrating strings could be reinterpreted in terms of well-established physics. The mathematically intricate world of strings, which exist in nine dimensions of space plus one of time, would be merely a hologram: the real action would play out in a simpler, flatter cosmos where there is no gravity.
Maldacena’s idea thrilled physicists because it offered a way to put the popular but still unproven theory of strings on solid footing — and because it solved apparent inconsistencies between quantum physics and Einstein’s theory of gravity.
[You are a simulation & physics can prove it: George Smoot at TEDxSalford. Nobel.
It provided physicists with a mathematical Rosetta stone, a ‘duality’, that allowed them to translate back and forth between the two languages, and solve problems in one model that seemed intractable in the other and vice versa (see ‘Collaborative physics: String theory finds a bench mate’).
But although the validity of Maldacena’s ideas has pretty much been taken for granted ever since, a rigorous proof has been elusive.
In two papers posted on the arXiv repository, … now provide, if not an actual proof, at least compelling evidence that Maldacena’s conjecture is true.
In one paper2, Hyakutake computes 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 string theory as well as the effects of so-called virtual particles that continuously pop into and out of existence (see ‘Astrophysics: Fire in the Hole!’).
Do we live in a 2-D hologram?
New Fermilab experiment will test the nature of the universe
August 26, 2014
Physicists Almost Certain The Universe Is Not A Hologram
July 05, 2011