The holographic state of matter and its implications for quantum gravity

Abstract

The holographic state of matter exists in the quantum gravitational regime, with black holes as the example. In this essay, we provide a microscopic derivation to the holographic thermodynamics and further discuss its implications for quantum gravity. Especially, we establish the link between holographic entropy and dimensional reduction. It seems that the fundamental physics behind black holes and the very early universe is $1+1$ dimensional.

arXiv comment6 pages, Essay written for the 2021 Gravity Research Foundation Essay Competition

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