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A QCD Analogy For Quantum Gravity: Department of Physics, University of Toronto, Toronto, Ontario, Canada M5S1A7 by Bruce is a document available to read on EtoBox.
The document discusses quadratic gravity as a renormalizable and asymptotically free theory of quantum gravity, drawing an analogy with quantum chromodynamics (QCD). It suggests that similar to QCD, the ghost pole in quadratic gravity may not appear in the physical spectrum, leading to the emergence of general relativity under certain conditions. The authors propose that the mass scale parameter M controls a quantum phase transition, influencing the physical spectrum and the presence of ghost states.
- Author
- Bruce
- Language
- EN