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The Fröhlich-Morchio-Strocchi mechanism and quantum gravity

by Axel Maas

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Submission summary

Authors (as registered SciPost users): Axel Maas
Submission information
Preprint Link: https://arxiv.org/abs/1908.02140v3  (pdf)
Date accepted: 2020-03-26
Date submitted: 2020-02-04 01:00
Submitted by: Maas, Axel
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
Specialties:
  • High-Energy Physics - Theory
Approach: Theoretical

Abstract

Taking manifest invariance under both gauge symmetry and diffeomorphisms as a guiding principle physical objects are constructed for Yang-Mills-Higgs theory coupled to quantum gravity. These objects are entirely classified by quantum numbers defined in the tangent space. Applying the Fr\"ohlich-Morchio-Strocchi mechanism to these objects reveals that they coincide with ordinary correlation functions in quantum-field theory, if quantum fluctuations of gravity and curvature become small. Taking these descriptions literally exhibits how quantum gravity fields need to dress quantum fields to create physical objects, i.e. giving a graviton component to ordinary observed particles. The same mechanism provides access to the physical spectrum of pure gravitational degrees of freedom.

Published as SciPost Phys. 8, 051 (2020)

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