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Gravitational effective action at second order in curvature and gravitational waves
We consider the full effective theory for quantum gravity at second order in curvature including non-local terms. We show that the theory contains two new degrees of freedom beyond the massless graviton: namely a massive spin-2 ghost and a massive scalar field. Furthermore, we show that it is imposs...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Springer Berlin Heidelberg
2017
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5589814/ https://www.ncbi.nlm.nih.gov/pubmed/28943802 http://dx.doi.org/10.1140/epjc/s10052-017-5172-3 |