The radion in brane cosmology
Binétruy, Pierre · Deffayet, Cédric · Langlois, David
High Energy Physics - Theory
Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
الأصل · EN
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.
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