Scalar tensor gravity in two 3-brane system
Jan, 20007 pages
Published in:
- Phys.Rev.D 62 (2000) 021502
e-Print:
- gr-qc/0001029 [gr-qc]
Report number:
- UTAP-360
View in:
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Abstract: (arXiv)
We derive the low-energy effective action of four-dimensional gravity in the Randall-Sundrum scenario in which two 3-branes of opposite tension reside in a five-dimensional spacetime. The dimensional reduction with the Ansatz for the radion field by Charmousis et al., which solves five-dimensional linearized field equations, results in a class of scalar-tensor gravity theories. In the limit of vanishing radion fluctuations, the effective action reduces to the Brans-Dicke gravity in accord with the results of Garriga and Tanaka: Brans-Dicke gravity with the corresponding Brans-Dicke parameter (for positive tension brane) and (for negative tension brane). In general the gravity induced a brane belongs to a class of scalar-tensor gravity with the Brans-Dicke parameter which is a function of the interval and the radion. In particular, gravity on a positive tension brane contains an attractor mechanism toward the Einstein gravity.- gravitation: scalar
- gravitation: tensor
- dimension: 5
- dimension: 4
- dimensional reduction
- Brans-Dicke model
- membrane model
- cosmological constant
- attractor
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