| Home | << 1 >> |
|
| Record | |||||
|---|---|---|---|---|---|
Author  |
Olmo, G.J. | ||||
| Title | Palatini actions and quantum gravity phenomenology | Type | Journal Article | ||
| Year | 2011 | Publication | Journal of Cosmology and Astroparticle Physics | Abbreviated Journal | J. Cosmol. Astropart. Phys. |
| Volume | 10 | Issue | 10 | Pages | 018 - 15pp |
| Keywords | quantum gravity phenomenology; cosmic singularity | ||||
| Abstract | We show that an invariant an universal length scale can be consistently introduced in a generally covariant theory through the gravitational sector using the Palatini approach. The resulting theory is able to capture different aspects of quantum gravity phenomenology in a single framework. In particular, it is found that in this theory field excitations propagating with different energy-densities perceive different background metrics, which is a fundamental characteristic of the DSR and Rainbow Gravity approaches. We illustrate these properties with a particular gravitational model and explicitly show how the soccer ball problem is avoided in this framework. The isotropic and anisotropic cosmologies of this model also avoid the big bang singularity by means of a big bounce. | ||||
| Address | [Olmo, GJ] Univ Valencia, Dept Fis Teor, E-46100 Valencia, Spain, Email: gonzalo.olmo@csic.es | ||||
| Corporate Author | Thesis | ||||
| Publisher | Iop Publishing Ltd | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1475-7516 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000296767600018 | Approved | no | ||
| Is ISI | yes | International Collaboration | no | ||
| Call Number | IFIC @ elepoucu @ | Serial | 816 | ||
| Permanent link to this record | |||||