Gauge Symmetry and Consistent Spin-Two Theories
| dc.creator | Blas, D. | |
| dc.date | 2007-01-06 | |
| dc.date | 2007-01-12 | |
| dc.date.accessioned | 2026-07-07T11:03:05Z | |
| dc.date.available | 2026-07-07T11:03:05Z | |
| dc.description | We study Lagrangians with the minimal amount of gauge symmetry required to propagate spin-two particles without ghosts or tachyons. In general, these Lagrangians also have a scalar mode in their spectrum. We find that, in two cases, the symmetry can be enhanced to a larger group: the whole group of diffeomorphisms or a enhancement involving a Weyl symmetry. We consider the non-linear completions of these theories. The intuitive completions yield the usual scalar-tensor theories except for the pure spin-two cases, which correspond to two inequivalent Lagrangians giving rise to Einstein's equations. A more constructive self-consistent approach yields a background dependent Lagrangian. | |
| dc.description | 7 pages, proceedings of IRGAC'06; typo corrected | |
| dc.identifier | https://arxiv.org/abs/hep-th/0701049 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0701049 | |
| dc.identifier | J.Phys.A40:6965-6972,2007 | |
| dc.identifier | doi:10.1088/1751-8113/40/25/S47 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188469 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Gauge Symmetry and Consistent Spin-Two Theories | |
| dc.type | text |