The dynamical Casimir effect in braneworlds

Details The dynamical Casimir effect in braneworlds The dynamical Casimir effect in braneworlds

2007-04-05

arxiv.org/abs/0704.0756v3

Phys.Rev.Lett.99:071601,2007

Physics

High Energy Physics

High Energy Physics - Theory

misprints corrected, matches published version

Scientific paper

10.1103/PhysRevLett.99.071601

In braneworld cosmology the expanding Universe is realized as a brane moving through a warped higher-dimensional spacetime. Like a moving mirror causes the creation of photons out of vacuum fluctuations, a moving brane leads to graviton production. We show that, very generically, Kaluza-Klein (KK) particles scale like stiff matter with the expansion of the Universe and can therefore not represent the dark matter in a warped braneworld. We present results for the production of massless and KK gravitons for bouncing branes in five-dimensional anti de Sitter space. We find that for a realistic bounce the back reaction from the generated gravitons will be most likely relevant. This letter summarizes the main results and conclusions from numerical simulations which are presented in detail in a long paper [M.Ruser and R. Durrer, Phys. Rev. D 76, 104014 (2007), arXiv:0704.0790]

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