We address the localization of gravity on the Friedmann-Robertson-Walker type brane embedded in either AdS5 or dS5 bulk space, and derive two definite limits between which the value of the bulk cosmological constant has to lie in order to localize the graviton on the brane. The lower limit implies that the brane should be either dS4 or 4D Minkowski in the AdS5 bulk. The positive upper limit indicates that the gravity can be trapped also on a curved brane in the dS5 bulk space. Some implications for recent cosmological scenarios are also discussed.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)