Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Eric V. Linder | - |
dc.date.accessioned | 2016-08-28T12:08:40Z | - |
dc.date.available | 2016-08-28T12:08:40Z | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.other | OAK-6170 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/220442 | - |
dc.description.abstract | We investigate a f(R) modification of gravity that is exponential in the Ricci scalar R to explain cosmic acceleration. The steepness of this dependence provides extra freedom to satisfy solar system and other curvature regime constraints. With a parameter to alleviate the usual fine-tuning of having the modification strengthen near the present, the total number of parameters is only one more than ΛCDM. The resulting class of solutions asymptotes to w=-1 but has no cosmological constant. We calculate the dynamics in detail, examine the effect on the matter power spectrum, and provide a simple fitting form relating the two. © 2009 The American Physical Society. | - |
dc.language | English | - |
dc.title | Exponential gravity | - |
dc.type | Article | - |
dc.relation.issue | 12 | - |
dc.relation.volume | 80 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.journaltitle | Physical Review D - Particles, Fields, Gravitation and Cosmology | - |
dc.identifier.doi | 10.1103/PhysRevD.80.123528 | - |
dc.identifier.wosid | WOS:000273233300059 | - |
dc.identifier.scopusid | 2-s2.0-73349132662 | - |
dc.author.google | Linder E.V. | - |
dc.date.modifydate | 20160429000000 | - |