Alex Kipman: Holograms

A futuristic vision of the age of holograms
TED2016. Feb 2016
http://www.ted.com/talks/alex_kipman_the_dawn_of_the_age_of_holograms

Explore a speculative digital world without screens in this fanciful demo, a mix of near reality and far-future possibility. Wearing the HoloLens headset, Alex Kipman demos his vision for bringing 3D holograms into the real world, enhancing our perceptions so that we can touch and feel digital content.

Universe is a hologram

At a black hole, Albert Einstein’s theory of gravity apparently clashes with quantum physics, but that conflict could be solved if the Universe were a holographic projection.

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
http://www.nature.com/news/simulations-back-up-theory-that-universe-is-a-hologram-1.14328

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.
http://tedxtalks.ted.com/video/You-are-a-simulation-physics-ca]
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!’).

related:
Do we live in a 2-D hologram?
New Fermilab experiment will test the nature of the universe
August 26, 2014
http://www.fnal.gov/pub/presspass/press_releases/2014/2-D-Hologram-20140826.html

Physicists Almost Certain The Universe Is Not A Hologram
July 05, 2011
http://www.npr.org/blogs/thetwo-way/2011/07/06/137634397/physicists-almost-certain-the-universe-is-not-a-hologram

https://franzcalvo.wordpress.com/2014/12/28/11-dimensions