dc.date.accessioned | 2017-08-15T12:53:39Z | |
dc.date.available | 2017-08-15T12:53:39Z | |
dc.date.created | 2013-01-09T09:25:42Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | Koivisto, Tomi Sebastian Mota, David Zumalacárregui, Miguel . Screening Modifications of Gravity Through Disformally Coupled Fields. Physical Review Letters. 2012, 109(24) | |
dc.identifier.uri | http://hdl.handle.net/10852/57040 | |
dc.description.abstract | It is shown that extensions to general relativity, which introduce a strongly coupled scalar field, can be viable if the interaction has a nonconformal form. Such disformal coupling depends upon the gradients of the scalar field. Thus, if the field is locally static and smooth, the coupling becomes invisible in the Solar System: this is the disformal screening mechanism. A cosmological model is considered where the disformal coupling triggers the onset of accelerated expansion after a scaling matter era, giving a good fit to a wide range of background observational data. Moreover, the interaction leaves signatures in the formation of large-scale structure that can be used to probe such couplings.
© 2012 American Physical Society | en_US |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.title | Screening Modifications of Gravity Through Disformally Coupled Fields | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Koivisto, Tomi Sebastian | |
dc.creator.author | Mota, David | |
dc.creator.author | Zumalacárregui, Miguel | |
cristin.unitcode | 185,15,3,0 | |
cristin.unitname | Institutt for teoretisk astrofysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 984160 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review Letters&rft.volume=109&rft.spage=&rft.date=2012 | |
dc.identifier.jtitle | Physical Review Letters | |
dc.identifier.volume | 109 | |
dc.identifier.issue | 24 | |
dc.identifier.pagecount | 5 | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevLett.109.241102 | |
dc.identifier.urn | URN:NBN:no-59773 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0031-9007 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/57040/2/PhysRevLett.109.241102.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 241102 | |