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 Fröhlich-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.
Subject
General Physics and Astronomy
Cited by
10 articles.
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