2007/01/31 by Supratik Pal, Sayan Kar
Physics and Astronomy · #Anti-de Sitter space #Black Holes and Theoretical Physics #Bounded function #Brane #Brane cosmology #Classical mechanics #Cosmology and Gravitation Theories #De Sitter universe #Geometry #Mathematical analysis #Mathematical physics #Noncommutative and Quantum Gravity Theories #Physics #Quantum mechanics #Scalar (mathematics) #Scalar field #Theoretical physics #Universe #astro-ph #gr-qc #hep-th
paper · pdf · doi:10.1007/s10714-008-0697-2
published as Gen.Rel.Grav.41:1165-1179,2009 · 18 pages, 5 figures. Substantial changes and new results. To appear in GRG
arxiv created 2008/10/03 · openalex publication_date 2008/10/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose new braneworld models arising from a scalar field in the bulk. In these examples, the induced on--brane line element is de Sitter (or anti de Sitter) and the bulk (five dimensional) Einstein equations can be exactly solved to obtain warped spacetimes. The solutions thus derived are single and two-brane models -- one with \em thin branes while the other one of the \em thick variety. The field profiles and the potentials are obtained and analysed for each case. We note that for the \em thick brane scenario the field profile resembles a kink, whereas for one or more \em thin branes, it is finite and bounded in the domain of the extra dimension. We have also addressed the localisation of gravity and other matter fields on the brane for these braneworld models.