Gravity beyond linear perturbations in the braneworld
نویسنده
چکیده
In the present paper, we briefly review recent studies of second-order gravitational perturbations in braneworld models. After we consider the possibility of pathological behavior of gravity at higher orders of perturbation, second-order perturbations are discussed in Randall-Sundrum braneworld models. Because the mass spectra in these braneworld models are different, we analyze them using different approaches. In the respective models, it is discussed that 4D Einstein gravity is approximately recovered at level of second-order perturbation, although there are some exceptional cases in the two-brane model.
منابع مشابه
Gravity beyond linear perturbation in braneworld
In the present paper, we briefly review recent studies of second order gravitational perturbations in braneworld models. After we mention the possibility of pathological behavior of gravity in higher order perturbations, second order perturbations are discussed in RandallSundrum braneworld models. Since mass spectrums of each braneworld model are different, we analyze them by different approach...
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