Integro-differential equation for brane-world cosmological perturbations
نویسندگان
چکیده
منابع مشابه
Brane-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...
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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...
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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...
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First, we will study the cosmological perturbations from the brane point of view. It turns out that two types of the extra data are necessary to know the evolution of the system. To fix these data, the analysis of the bulk is needed. So, we have solved equations of motion for the bulk gravity and determined the extra data. We would like to stress that, both analysis take complementary roles to ...
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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...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2001
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.64.064006