Singularities on the brane are not isotropic

Simple item page
dc.contributor.authorBruni, Marco
dc.contributor.authorDunsby, Peter K S
dc.date.accessioned2021-10-08T07:11:30Z
dc.date.available2021-10-08T07:11:30Z
dc.date.issued2002
dc.description.abstractRecent studies of homogeneous anisotropic universe models in the brane world scenario show that the cosmological singularity in this context is isotropic. It has therefore been suggested that this may be a generic feature of singularities on the brane, even in the inhomogeneous case. Using a perturbative approach, we show that this is not the case. As in the GR case, the presence of decaying modes in the perturbations signal the instability (in the past) of the isotropic singularity. The brane universe is therefore not born with isotropy built in: as in standard cosmology, the observed large-scale isotropy and homogeneity remains to be explained
dc.identifier.apacitationBruni, M., & Dunsby, P. K. S. (2002). Singularities on the brane are not isotropic. <i>Physical Review D - Particles and Fields</i>, 66(10), 174 - 177. http://hdl.handle.net/11427/34625en_ZA
dc.identifier.chicagocitationBruni, Marco, and Peter K S Dunsby "Singularities on the brane are not isotropic." <i>Physical Review D - Particles and Fields</i> 66, 10. (2002): 174 - 177. http://hdl.handle.net/11427/34625en_ZA
dc.identifier.citationBruni, M. & Dunsby, P.K.S. 2002. Singularities on the brane are not isotropic. <i>Physical Review D - Particles and Fields.</i> 66(10):174 - 177. http://hdl.handle.net/11427/34625en_ZA
dc.identifier.issn0556-2821
dc.identifier.issn1089-4918
dc.identifier.ris TY - Journal Article AU - Bruni, Marco AU - Dunsby, Peter K S AB - Recent studies of homogeneous anisotropic universe models in the brane world scenario show that the cosmological singularity in this context is isotropic. It has therefore been suggested that this may be a generic feature of singularities on the brane, even in the inhomogeneous case. Using a perturbative approach, we show that this is not the case. As in the GR case, the presence of decaying modes in the perturbations signal the instability (in the past) of the isotropic singularity. The brane universe is therefore not born with isotropy built in: as in standard cosmology, the observed large-scale isotropy and homogeneity remains to be explained DA - 2002 DB - OpenUCT DP - University of Cape Town IS - 10 J1 - Physical Review D - Particles and Fields LK - https://open.uct.ac.za PY - 2002 SM - 0556-2821 SM - 1089-4918 T1 - Singularities on the brane are not isotropic TI - Singularities on the brane are not isotropic UR - http://hdl.handle.net/11427/34625 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34625
dc.identifier.vancouvercitationBruni M, Dunsby PKS. Singularities on the brane are not isotropic. Physical Review D - Particles and Fields. 2002;66(10):174 - 177. http://hdl.handle.net/11427/34625.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Mathematics and Applied Mathematics
dc.publisher.facultyFaculty of Science
dc.sourcePhysical Review D - Particles and Fields
dc.source.journalissue10
dc.source.journalvolume66
dc.source.pagination174 - 177
dc.source.urihttps://dx.doi.org/10.1103/PhysRevD.66.101301
dc.subject.otherCosmology and Gravitation
dc.titleSingularities on the brane are not isotropic
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
BruniMarco_Singularities_o_2002.pdf
Size:
58.64 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Journal Articles