期刊
CLASSICAL AND QUANTUM GRAVITY
卷 37, 期 11, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-6382/ab857f
关键词
quantum space-time; matrix models; higher spin; noncomutative geometry; emergent gravity
类别
资金
- Austrian Science Fund (FWF) [P32086-N27]
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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