Multiple-scales analysis of cosmological perturbations in brane-worlds
نویسندگان
چکیده
منابع مشابه
Cosmological Brane Perturbations a
At the end of the last millennium it was realized that the traditional Kaluza-Klein approach is not the only possibility of dimensional reduction. An alternative approach was developed, the brane-world scenario. In this scenario the standard matter fields are constrained to a lower dimensional hypersurface, or brane, which is embedded in a higher dimensional spacetime, or bulk. The gravitationa...
متن کاملBrane-world cosmological perturbations
Brane-world models provide a phenomenology that allows us to explore the cosmological consequences of some M theory ideas, and at the same time to use precision cosmology as a test of these ideas. In order to achieve this, we need to understand how brane-world gravity affects cosmological dynamics and perturbations. This introductory review describes the key features of cosmological perturbatio...
متن کاملBrane cosmological perturbations
We address the question of cosmological perturbations in the context of brane cosmology, where our Universe is a three-brane where matter is confined, whereas gravity lives in a higher dimensional spacetime. The equations governing the bulk perturbations are computed in the case of a general warped universe. The results are then specialized to the case of a five-dimensional spacetime, scenario ...
متن کاملOn Brane World Cosmological Perturbations
We discuss the scalar cosmological perturbations in a 3-brane world with a 5D bulk. We first show explicitly how the effective perturbed Einstein’s equations on the brane (involving the Weyl fluid) are encoded into Mukohyama’s master equation. We give the relation between Mukohyama’s master variable and the perturbations of the Weyl fluid, we also discuss the relation between the former and the...
متن کاملCosmological perturbations in brane-world theories: Formalism
Carsten van de Bruck,* Miquel Dorca, Robert H. Brandenberger, and André Lukas Department of Physics, Brown University, Providence, Rhode Island 02912 DAMTP, Center for Mathematical Sciences, Wilberforce Road, CB3 0WA, Cambridge, United Kingdom Department of Physics, Theoretical Physics, University of Oxford 1 Keble Road, Oxford OX1 3NP, United Kingdom ~Received 19 June 2000; published 29 Novemb...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2004
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.70.124008