2001/01/31 by Pierre Binétruy, Cédric Deffayet, David Langlois · 5 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Electrodynamics and Casimir Effect #astro-ph #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1016/s0550-3213(01)00426-6
published as Nucl.Phys.B615:219-236,2001 · 24 pages, 4 figures; two figures completed and some comments added in section 7.2; a small section 7.3 added on Randall-Sundrum type of models; some references added
arxiv created 2001/03/13 · openalex publication_date 2001/11/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We consider the homogeneous cosmological radion, which we define as the interbrane distance in a two brane and Z2 symmetrical configuration. In a coordinate system where one of the brane is at rest, the junction conditions for the second (moving) brane give directly the (non-linear) equations of motion for the radion. We analyse the radion fluctuations and solve the non-linear dynamics in some simple cases of interest.