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arXiv · 1911.03162

On the quantum structure of space-time, gravity, and higher spin in matrix models

Harold C. Steinacker
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Abstract

In this introductory review, we argue that a quantum structure of space-time naturally entails a higher-spin theory, to avoid significant Lorentz violation. A suitable framework is provided by Yang-Mills matrix models, which allow to consider space-time as a physical system, which is treated on the same footing as the fields that live on it. We discuss a specific quantum space-time solution, whose internal structure leads to a consistent and ghost-free higher-spin gauge theory. The spin 2 modes give rise to metric perturbations, which include the standard gravitons as well as the linearized Schwarzschild solution.

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Harold C. Steinacker. 2020-04-01. On the quantum structure of space-time, gravity, and higher spin in matrix models. https://doi.org/10.1088/1361-6382%2Fab857f

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