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 Subject: We are living in a giant hologram, and everything we see around us is merely a projection of a twodimensional surface. Mon Apr 27, 2015 10:18 pm  
 We are living in a giant hologram, and everything we see around us is merely a projection of a twodimensional surface.http://www.dailymail.co.uk/sciencetech/article3057957/ArelivingHOLOGRAMtimescientistsprovestrangetheorytruerealisticmodelsuniverse.htmlAre we living in a HOLOGRAM? For the first time, scientists prove strange theory could be true in 'realistic models' of our universe
 Holographic principle suggests there is a 2D surface that we can't see
 This surface contains all the information needed to describe 3D objects
 Since 1997, equations used to show holographic principle could be true have been based on models that contradict theories about our universe
 Now scientists have shown how it works in universe that is largely flat
By Ellie Zolfagharifard For Dailymail.com Published: 19:57, 27 April 2015  Updated: 20:49, 27 April 2015 [*] [*] We are living in a giant hologram, and everything we see around us is merely a projection of a twodimensional surface.This is the bizarre theory put forward in 1997 by physicist Juan Maldacena, who was able to prove its existence in equations that only partially explain our universe.Now researchers in Austria have, for the first time, been able to show how this strange holographic principle can also work in a more realistic model of our cosmos. We are living in a giant hologram, and everything we see around us is a projection of a 2D surface. This is the bizarre theory put forward in 1997 by Juan Maldacena. Now researchers in Austria have, for the first time, been able to show how this strange holographic principle can work in a realistic model of our cosmos THE HOLOGRAPHIC PRINCIPLEThe holographic principle claims gravity in the universe comes from thin, vibrating strings.These strings are holograms of events that take place in a simpler, flatter cosmos.The principle suggests that, like the security chip on your credit card, there is a twodimensional surface that contains all the information needed to describe a threedimensional object  which in this case is our universe.The theory claims that data containing a description of a volume of space  such as a human or a comet  could be hidden in a region of this flattened, 'real' version of the universe.In a black hole, for instance, all the objects that ever fall into it would be entirely contained in surface fluctuations, almost like a piece of computer memory on contained in a chip.In a larger sense, the theory suggests that the entire universe can be seen as a 'twodimensional structure projected onto a cosmological horizon'  or in simpler terms, a projection.If we could understand the laws that govern physics on that distant surface, the principle suggests we would grasp all there is to know about reality.The holographic principle suggests that, like the security chip on your credit card, there is a twodimensional surface that we can't see.This surface contains all the information needed to describe a threedimensional object  which in this case is our universe.In essence, the principle claims that data containing a description of 3D object – such as the device you're reading this on  could be hidden in a region of this flattened, 'real' version of the universe.Maldacena came to this conclusion when he discovered that mathematical descriptions of the universe actually require one fewer dimension than it seems.But up until now, this principle has only been studied in something known as 'curved antidesitter spaces' – or exotic spaces with negative curvature.Scientists came up with these spaces as way to combine describing gravity in a threedimensional setting while predicting quantum particles in two spatial dimensions.Antidesitter spaces are negatively curved, and any object thrown away on a straight line will eventually return.The problem is they are very different from the spaces in our own universe. Our universe is largely flat, and on astronomic distances, it has positive curvature.The latest study by scientists at the Technology University of Vienna now suggests that the holographic principle holds in a flat spacetime.'Juan Maldacena proposed the idea that there is a correspondence between gravitational theories in curved antidesitter spaces on the one hand and quantum field theories in spaces with one fewer dimension on the other', says Daniel Grumiller from the Technology University of Vienna.To test the theory, scientists spent three years creating gravitational equations that do not require exotic spaces and, instead, live in a flat space.'If quantum gravity in a flat space allows for a holographic description by a standard quantum theory, then there must by physical quantities, which can be calculated in both theories – and the results must agree', says Grumiller.The holographic principle suggests that, like the security chip on your credit card, there is a twodimensional surface that we can't see. This surface contains all the information needed to describe a threedimensional object  which in this case is our universe They said one key feature of quantum mechanics –quantum entanglement – had to appear in the more realistic model of our universe.When quantum particles are entangled, they cannot be described individually. They form a single quantum object, even if they are located far apart.There is a measure for the amount of entanglement in a quantum system, called 'entropy of entanglement'.The team showed that this entanglement takes the same value in both a flat quantum gravity model and in a low dimension quantum field theory.'This calculation affirms our assumption that the holographic principle can also be realised in flat spaces,' said Max Riegler at the Technology University of Vienna.'It is evidence for the validity of this correspondence in our universe', says Max Riegler (TU Wien).'The fact that we can even talk about quantum information and entropy of entanglement in a theory of gravity is astounding in itself, and would hardly have been imaginable only a few years back,' added Grumiller.'That we are now able to use this as a tool to test the validity of the holographic principle, and that this test works out, is quite remarkable.' 
