[Gravity, NKS, String Theory] - A New Kind of Science: The NKS Forum

A New Kind of Science: The NKS Forum

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Gravity, NKS, String Theory

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Posted by: Philip Ronald Dutton

Without getting bogged down in aspects of string theory, old gravity theories, etc., it seems worth mentioning that a string theory view of a black hole would provide the NKS physicist some avenues of NKS type thought concerning gravity.


The big particle point of view for black holes seems necessarily attractive because you suddenly do not have talk about density (or do you?). Contrast the notion of a large planet (with x to the x number of particles) and a single particle the same size. By stripping away the notion of density then it just feels like it would be easier to engage in thought experimentation with NKS gravity. Here is this huge particle exhibiting this large "imprint" on this thing we call gravity (or maybe the space/time structure imprints the particle with new ability to affect other particles).

I mean, there is only so much a big particle can do!! Here are some possiblities:
-It can interact with the other smaller particles (like at the event horizon)
-it can interact with the structure of space/time (it can do the imprinting or it can be imprinted upon)
-it can make a random internal state transformation (maybe)


Seems pretty simple. So where does NKS fit in? I think it should be possible to enumerate the existing instances of "thought experimentation setups" using the above set of possible things a "big particle" can do.


Posted by: h0riz0n

http://www.arxiv.org/abs/hep-th/0603022

We show that a class of background independent models of quantum spacetime have local excitations that can be mapped to the first generation fermions of the standard model of particle physics. These states propagate coherently as they can be shown to be noiseless subsystems of the microscopic quantum dynamics. These are identified in terms of certain patterns of braiding of graphs, thus giving a quantum gravitational foundation for the topological preon model proposed by one of us.

[http://www.arxiv.org/abs/hep-th/0603022
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