Brane cosmological perturbations

By D. Langlois. 2000

147 citations recorded by the source corpus.

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 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, a scenario which has recently attracted a lot of attention. In this context, we decompose the perturbations into ``scalar,'' ``vector,'' and ``tensor'' modes, which are familiar in the standard theory of cosmological perturbations. The junction conditions, which relate the metric perturbations to the matter perturbations in the brane, are then computed.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/63326798b72e527e9b41ab25cf79a65cf7d1c571

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In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

Brane-World Gravity (2004, background): “The theory of gauge-invariant perturbations in brane-world cosmology has been extensively investigated and developed [303, 271, 24, 308, 99, 312, 369, 346, 286, 177, 272, 176, 331, 333, 190, 235, 265, 416, 258, 332, 417, 231, 266, 191, 123, 158, 234, 50, 127, 340, 385, 368, 285, 85, 90, 116, 41, 54,”
General brane cosmologies and their global spacetime structure (2000, background): “The setting up of the formalism for perturbation theory on the brane is already underway [45, 46 ]; by considering the cosmological domain wall in terms of its global spacetime structure, the role of the bulk, its interactions with matter on the brane, and the interpretation of some of the gauge inv”
Modified Gravity and Cosmology (2011, unknown): “Cosmological perturbations While the theory describing cosmological perturbations in braneworld gravity has been well developed in recent years (see, for example, [842, 771, 847, 334, 1087, 991, 801, 202, 201, 548, 772, 547, 918, 919, 921, 920, 596, 716, 768, 1244, 742, 1245, 703, 705, 715, 769, 597”