Abstract
We consider a model with two parallel (positive tension) 3-branes separated by a distance in five-dimensional spacetime. If the interbrane space is anti–de Sitter, or is not precisely anti–de Sitter but contains no event horizons, the effective four-dimensional cosmological constant seen by observers on one of the branes (chosen to be the visible brane) becomes exponentially small as grows large.
- Received 9 June 2000
DOI:https://doi.org/10.1103/PhysRevLett.86.1682
©2001 American Physical Society