Effective Lagrangians for linearized gravity in Randall-Sundrum model

Abstract

We construct the second variation Lagrangian for Randall-Sundrum model with two branes, study its gauge invariance, find the corresponding equations of motion and decouple them. We also derive an effective Lagrangian for this model in the unitary gauge, which describes a massless graviton, massive gravitons and a massless scalar radion. It is shown that the mass spectra of these fields and their couplings to the matter are different on different branes.

14 pages, LaTex, no figures, corrected typos

References in corpus (2)

• TASI Lectures on D-Branes
• String and D-brane Physics at Low Energy

Cited by in corpus (8)

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• Nonlocal braneworld action: an alternative to Kaluza-Klein description
• Energy scales in a stabilized brane world
• Brane induced gravity in warped backgrounds and the absence of the radion
• Testing extra dimensions below the production threshold of Kaluza-Klein excitations
• Linearized gravity as a gauge theory
• On the long-range gravity in warped backgrounds
• Phase transitions, massive gravitons and effective action in braneworld theory