Noether symmetry in $f(R)$ cosmology
| dc.creator | Vakili, Babak | |
| dc.date | 2008-04-22 | |
| dc.date | 2008-05-17 | |
| dc.date.accessioned | 2026-07-07T11:50:04Z | |
| dc.date.available | 2026-07-07T11:50:04Z | |
| dc.description | The Noether symmetry of a generic $f(R)$ cosmological model is investigated by utilizing the behavior of the corresponding Lagrangian under the infinitesimal generators of the desired symmetry. We explicitly calculate the form of $f(R)$ for which such symmetries exist. It is shown that the resulting form of $f(R)$ yields a power law expansion for the cosmological scale factor. We also obtain the effective equation of state parameter for the corresponding cosmology and show that our model can provide a gravitational alternative to the quintessence. | |
| dc.description | 9 pages,no figures,typos corrected,references added, to appear in PLB | |
| dc.identifier | https://arxiv.org/abs/0804.3449 | |
| dc.identifier | http://arxiv.org/abs/0804.3449 | |
| dc.identifier | Phys.Lett.B664:16-20,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2008.05.008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203451 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Noether symmetry in $f(R)$ cosmology | |
| dc.type | text |