Holographic Principle and the Description of Higher Dimensional Universes

In summary: What this article shows is that the holographic principle is still viable. It has implications for quantum gravity, which is a field of physics that attempts to connect the principles of quantum mechanics with the principles of classical mechanics. The study of gravity has been difficult to connect with quantum mechanics, but this new research may help to bridge the gap.
  • #1
wolram
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I thought that the holographic idea had been ruled out, But this article shows that it could be ruled in again.

https://www.sciencedaily.com/releases/2017/03/170321110344.htm

And this new research has implications for some fundamental problems in physics. So far, the study of gravity has largely defied efforts to bring it under the umbrella of quantum mechanics, but theorists continue to look for connections. "Our classical theory of gravity relies on knowing exactly the shape or geometry of space-time," Del Maestro says, but quantum mechanics requires uncertainty about this shape. A piece of the bridge between these may be formed by this new study's contribution to the "holographic principle": the exotic contention that the entire 3-D universe might be understood as two-dimensional information -- whether a gargantuan black hole or microscopic puddle of superfluid helium.
 
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  • #2
What gave you the impression that holography has been ruled out?
 
  • #4
What I personally dislike about the hologram universe idea. is that while it certainly possible to describe a 3D object as a 2D matrix,
that does not lead to the conclusion that our 3D perception is somehow wrong.
You can describe any world you like really in just one dimension. as a series of binary bits.
 
  • #5
^doesn't the whole black hole entropy growing with surface area thing suggest the 2d description is somehow more fundamental?
 
  • #6
When you don't know the answer, nothing can be 'ruled out'. That's like showing pictures of your safari before you go. That would be a nice trick.
 
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  • #7
rootone said:
You can describe any world you like really in just one dimension. as a series of binary bits.

Even with an infinite number of bits, how could you describe a world with an infinite numbers of dimensions? You would only have 1 bit for each dimension.

Let's say you can represent a 2D universe to some precision, possibly infinite. Isn't the point of the holographic principle that, with the same amount of information, you will have less precision in describing a 3D geometry?
 

1. What does it mean for the Universe to be holographic?

The holographic principle is a theoretical concept that suggests that all information about a three-dimensional space can be represented on a two-dimensional surface. This means that the entire Universe could potentially be thought of as a hologram, with all of its complexity and vastness contained within a lower-dimensional space.

2. How do scientists investigate the possibility of a holographic Universe?

Scientists use a variety of techniques, such as studying the behavior of black holes and examining the cosmic microwave background radiation, to gather evidence for the holographic principle. They also conduct experiments using high-energy particle accelerators to test the limits of our current understanding of the Universe.

3. What implications would a holographic Universe have on our understanding of reality?

If the Universe is indeed holographic, it would challenge our traditional understanding of reality and the laws of physics. It would also suggest that our perception of space and time may be limited and that there could be hidden dimensions beyond our current understanding.

4. Is there any evidence to support the holographic principle?

While there is still much debate and ongoing research in this area, there have been several studies and experiments that have provided evidence for the holographic principle. For example, the strange behavior of black holes and the consistency of the cosmic microwave background radiation with holographic predictions have been cited as possible evidence.

5. Could the holographic principle be applied to other areas of science?

Yes, the holographic principle has been explored and applied in various fields of science, such as quantum mechanics and information theory. It has also been applied to the study of brain function and consciousness, with some suggesting that the brain may function like a hologram, storing and processing information in a similar way to a holographic image.

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