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Quadratic Gravity
Adding terms quadratic in the curvature to the Einstein-Hilbert action renders gravity renormalizable. This property is preserved in the presence of the most general renormalizable couplings with (and of) a generic quantum field theory (QFT). The price to pay is a massive ghost, which is due to the...
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| Lenguaje: | eng |
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2018
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| Acceso en línea: | https://dx.doi.org/10.3389/fphy.2018.00077 http://cds.cern.ch/record/2318415 |