Fluctuating brane in a dilatonic bulk

Abstract

We consider a cosmological brane moving in a static five-dimensional bulk spacetime endowed with a scalar field whose potential is exponential. After studying various cosmological behaviours for the homogeneous background, we investigate the fluctuations of the brane that leave spacetime unaffected. A single mode embodies these fluctuations and obeys a wave equation which we study for bouncing and ever-expanding branes.

17 pages, 7 figures, revtex

References in corpus (2)

• Cosmological Evolution of Brane World Moduli
• Perturbations on a moving D3-brane and mirage cosmology

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• Pre-Big Bang Scenario on Self-T-Dual Bouncing Branes
• Dynamics of domain wall in charged AdS dilaton black hole spacetime