- #1

kodama

- 978

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- TL;DR Summary
- bulk theories of quantum gravity are dual to each other

this paper

arXiv:2310.02958 [pdf, other]

What if Quantum Gravity is "just'' Quantum Information Theory?

Aron C. Wall

Comments: 6 pages, 2 figures. Additional references added to arxiv version

Journal-ref: Proc. 28th Solvay Conf. Phys., ed. D. Gross, A. Sevrin, P. Zoller, World Scientific Publishing Co., Singapore, 2023

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

except

would quantize a LQG model in AdS. via holographybe dual to N = 4 Super Yang-Mills and also string theory

arXiv:2310.02958 [pdf, other]

What if Quantum Gravity is "just'' Quantum Information Theory?

Aron C. Wall

Comments: 6 pages, 2 figures. Additional references added to arxiv version

Journal-ref: Proc. 28th Solvay Conf. Phys., ed. D. Gross, A. Sevrin, P. Zoller, World Scientific Publishing Co., Singapore, 2023

Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)

I suggest the possibility that holographic quantum gravity is, in some sense, equivalent to quantum information theory. Some radical implications would follow. First, the theory of quantum gravity should have no adjustable coupling constants, similar to string theory. Thus, all complete bulk theories of quantum gravity are dual to each other. By setting up an appropriately entangled state, it should be possible to find wormholes connecting any two quantum gravity theories (e.g. string theory and loop quantum gravity). Secondly, if we represent space at one time as a tensor network, then dynamics is automatically encoded via gauge-equivalent descriptions of the boundary state. This would appear to imply, contrary to semiclassical expectations, that a closed universe should have only one state.

except

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