Modified gravity without new degrees of freedom
| dc.creator | Freidel, Laurent | |
| dc.date | 2008-12-17 | |
| dc.date.accessioned | 2026-07-07T12:16:12Z | |
| dc.date.available | 2026-07-07T12:16:12Z | |
| dc.description | We show that the new type of "non-metric" gravity theories introduced independently by Bengtsson and Krasnov can in fact be reexpressed explicitely as a metrical theory coupled to an auxiliary field. We unravel why such theories possess only one propagating graviton by looking at the quadratic perturbation around a fixed solution. And we give a general construction principle with a new class of example of such modified gravity theories still possessing only two propagating degrees of freedom. | |
| dc.description | 19 pages | |
| dc.identifier | https://arxiv.org/abs/0812.3200 | |
| dc.identifier | http://arxiv.org/abs/0812.3200 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/211727 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Modified gravity without new degrees of freedom | |
| dc.type | text |