Einstein-Cartan formulation of Chern-Simons Lorentz-violating Gravity
| dc.creator | Cantcheff, Marcelo Botta | |
| dc.date | 2007-12-29 | |
| dc.date | 2008-07-18 | |
| dc.date.accessioned | 2026-07-07T11:39:44Z | |
| dc.date.available | 2026-07-07T11:39:44Z | |
| dc.description | We consider a modification of the standard Einstein theory in four dimensions, alternative to R. Jackiw and S.-Y. Pi, Phys. Rev. D 68, 104012 (2003), since it is based on the first-order (Einstein-Cartan) approach to General Relativity, whose gauge structure is manifest. This is done by introducing an additional topological term in the action which becomes a Lorentz-violating term by virtue of the dependence of the coupling on the space-time point. We obtain a condition on the solutions of the Einstein equations, such that they persist in the deformed theory, and show that the solutions remarkably correspond to the classical solutions of a collection of independent 2+1-d (topological) Chern-Simons gravities. Finally, we study the relation with the standard second-order approach and argue that they both coincide to leading order in the modulus of the Lorentz-violating vector field. | |
| dc.description | Final version | |
| dc.identifier | https://arxiv.org/abs/0801.0067 | |
| dc.identifier | http://arxiv.org/abs/0801.0067 | |
| dc.identifier | Phys.Rev.D78:025002,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.025002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200031 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Einstein-Cartan formulation of Chern-Simons Lorentz-violating Gravity | |
| dc.type | text |