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MechaSoySauce t1_j0bbbrj wrote

The "holographic" comes from the holographic principle in physics (specifically in quantum gravity). It's called "holographic" because it states that an N-dimensional theory of quantum gravity is equivalent to an N-1 theory on the boundary of the space: so the theory in the bulk is encoded on the boundary, like an hologram encodes the information about a 3D field in a 2D medium (kind of).

Edit: This is far from my area of expertise, but if you have questions it'll probably be more likely to get answers under physics than compsci.

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Separate-Rabbit-2851 OP t1_j0eogle wrote

so what i’m understanding from that analogy, is that the information traversed a forth dimensional “wormhole” to present itself upon a 3 dimensional medium? With the N-1 dimension theory? That’s kinda what i understood, and yeah i also posted this on r/physics

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MechaSoySauce t1_j0fue49 wrote

Keep in mind that this is not my area of expertise, but my understanding is no. I don't quite get the "traversable" part, but the holographic part refers to the fact that they're not actually simulating a wormhole, instead they're simulating the equivalent of a wormhole under the holographic principle.

That is to say, you have two theories A and B and one of them is a quantum gravity theory with wormholes and another is a quantum field theory without gravity (nor wormholes) in it. The holographic principle tells you that these two theories are equivalent, which is to say that there's some kind of way to translate one into the other. They want to study wormholes in theory A, but it's too hard. So, what they do is instead they study whatever the equivalent of wormholes in theory A is in theory B. These are the "holographic wormholes". It's not that the wormhole itself is an hologram or something, rather it's that you study the equivalent object to a wormhole under the holographic principle.

Here's a discussion in r/physics on the topic, and a vulgarisation article by Strassler. Hope that helps.

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