dc.contributor.author | Carroll, Sean M. | |
dc.contributor.author | Johnson, Matthew C. | |
dc.contributor.author | Randall, Lisa | |
dc.date.accessioned | 2012-01-25T19:49:32Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Carroll, Sean M., Matthew C. Johnson, and Lisa Randall. 2009. Dynamical compactification from de Sitter space. Journal of High Energy Physics 11: 094. | en_US |
dc.identifier.issn | 1029-8479 | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:8052090 | |
dc.description.abstract | We show that \(D\)-dimensional de Sitter space is unstable to the nucleation of non-singular geometries containing spacetime regions with different numbers of macroscopic dimensions, leading to a dynamical mechanism of compactification. These and other solutions to Einstein gravity with flux and a cosmological constant are constructed by performing a dimensional reduction under the assumption of \(q\)-dimensional spherical symmetry in the full \(D\)-dimensional geometry. In addition to the familiar black holes, black branes, and compactification solutions we identify a number of new geometries, some of which are completely non-singular. The dynamical compactification mechanism populates lower-dimensional vacua very differently from false vacuum eternal inflation, which occurs entirely within the context of four-dimensions. We outline the phenomenology of the nucleation rates, finding that the dimensionality of the vacuum plays a key role and that among vacua of the same dimensionality, the rate is highest for smaller values of the cosmological constant. We consider the cosmological constant problem and propose a novel model of slow-roll inflation that is triggered by the compactification process. | en_US |
dc.description.sponsorship | Physics | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Springer | en_US |
dc.relation.isversionof | doi:10.1088/1126-6708/2009/11/094 | en_US |
dc.relation.hasversion | http://arxiv.org/abs/0904.3115 | en_US |
dash.license | OAP | |
dc.subject | flux compactifications | en_US |
dc.subject | p-branes | en_US |
dc.subject | classical theories of gravity | en_US |
dc.subject | high energy physics | en_US |
dc.subject | mathematical physics | en_US |
dc.subject | gravitation | en_US |
dc.subject | cosmology | en_US |
dc.subject | particle physics | en_US |
dc.subject | field theory | en_US |
dc.subject | astrophysics | en_US |
dc.subject | astroparticles | en_US |
dc.subject | cosmology of theories beyond the SM | en_US |
dc.title | Dynamical Compactification from de Sitter Space | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Author's Original | en_US |
dc.relation.journal | Journal of High Energy Physics | en_US |
dash.depositing.author | Randall, Lisa | |
dc.date.available | 2012-01-25T19:49:32Z | |
dc.identifier.doi | 10.1088/1126-6708/2009/11/094 | * |
dash.contributor.affiliated | Randall, Lisa | |