Superrenormalizable quantum gravity with complex ghosts
By L. Modesto, Ilya Shapiro. 2015
183 citations recorded by the source corpus.
Abstract We suggest and briefly review a new sort of superrenormalizable models of higher derivative quantum gravity. The higher derivative terms in the action can be introduced in such a way that all the unphysical massive states have complex poles. According to the literature on Lee–Wick quantization, in this case the theory can be formulated as unitary, since all massive ghosts-like degrees of freedom are unstable.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/3f8a11aa5757b63e4916ddb52b10745292a05046
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In Astronomy and Astrophysics
In Nuclear and High Energy Physics
In Statistical and Nonlinear Physics
Citations in the corpus
- On the quantum field theory of the gravitational interactions (2017, methodology): “The LW models have been studied in QED [7], the standard model [11] and grand unified theories [12], besides quantum gravity [13, 14].”