Self-tuning in an Outgoing Brane Wave Model
arXiv:hep-th/0004206 · doi:10.1103/PhysRevD.62.086005
Abstract
We introduce a new brane-world model in which the bulk solution consists of outgoing plane waves. This is an exact solution to string theory with no naked singularities. The recently discussed self-tuning mechanism to cancel the cosmological constant on a brane is naturally incorporated. We show that even if the vacuum energy on the brane changes, e.g. due to a phase transition, the brane geometry remains insensitive to the local vacuum energy. We also consider the static self-tuning branes introduced earlier, and find a solution in which the brane geometry starts to contract when the vacuum energy on the brane changes.
20 pages, 3 figures, latex; v2: minor correction and reference added
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