Gravity beyond Linear Perturbations in the Braneworld

Autor: Hideaki Kudoh
Rok vydání: 2002
Předmět:
Zdroj: Progress of Theoretical Physics Supplement. 148:145-157
ISSN: 0375-9687
Popis: In the present paper, we briefly review recent studies of second-order gravitational perturbations in braneworld models. After we consider the possibility of pathological behavior of gravity at higher orders of perturbation, second-order perturbations are discussed in Randall-Sundrum braneworld models. Because the mass spectra in these braneworld models are different, we analyze them using different approaches. In the respective models, it is discussed that 4D Einstein gravity is approximately recovered at level of second-order perturbation, although there are some exceptional cases in the two-brane model.
Comment: 12 pages, typos corrected, Proceedings for YITP workshop "Braneworld -Dynamics of spacetime boundary -"
Databáze: OpenAIRE