It’s still possible we all live inside a hologram

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It’s still possible we all live inside a hologram

by Jamie Lendino
ExtremeTech

Is our universe actually just a Hologram This idea has been floating around before, and not just some trippy, thinking something awful is obtained at 3 am, perhaps along with (or as a result of) insomnia. Instead, it could very well be a physical property of the universe. And may have been under our noses all this time.

Mathematicians are already familiar with the principle Holographic , the famous physicist Leonard Susskind first proposed. It is claimed that a volume of space can be thought of as encoded in a limit to it - as a gravitational horizon observer-dependent - and therefore needs less than it seems to need dimension. By extension, since our universe looks three-dimensional to us, it might actually be a two-dimensional structure that overlaps an incredibly large cosmic horizon.


in 1997, Juan Maldacena first postulated the theory of a holographic universe, saying that gravity arises from thin strings vibrating in 10 dimensions exist. Other physicists have been working on the concept since.

"The work culminated in the last decade, and suggests, surprisingly, that everything we experience is nothing more than a holographic projection of processes taking place in some remote surface around us, " wrote physicist Brian Greene , from Columbia University in 2011." you can pinch, and what you feel is real, but reflects a parallel process that takes place in a different, distant. reality "

Now physicists at TU Wien (Vienna) propose that the holographic principle works even in a flat space-time, and not only in the theoretical regions with negative curvature. As a rule, gravitational phenomena are described in three spatial dimensions, while quantum particles are described in only two dimensions. It turns out that you can assign the results of one over the other - a surprising finding that has led to more than 10,000 scientific papers in theoretical physics in space with negative curvature so far. But it did not seem at all related to our own universe, flat, positively curved so far.



"If gravity quantum in a flat space allows a holographic description for a standard quantum theory, then it must by physical quantities, which can be calculated in both theories - and the results must agree, "said Daniel Grumiller TU Wien, in a statement . This includes the development of quantum entanglement in the gravitation theory, which means that the particles can not be described individually. It turns out that you can measure the amount of entanglement in a quantum system, which is called the entropy of entanglement. Grumiller shows that it has the same value on the smooth quantum gravity and quantum field theory of low dimension.

"This calculation affirms our assumption that the holographic principle can also be performed in flat spaces. It is proof the validity of this correspondence in our universe, "says Max Riegler, also of TU Wien. "The fact that you can even talk of quantum information and entropy of entanglement in a theory of gravity is amazing in itself, and would hardly have been imaginable just a few years ago. They 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, "said Grumiller.

that sounds amazing. But unfortunately, this takes us one step closer to the frightening reality that we are perhaps living in a hologram.

"It’s still possible we all live inside a hologram", article source: riseearth.com


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