Gravity in extra dimensions
Theories of gravity in more than the usual four dimensions
have recently received great attention, mainly in string and brane inspired
models, and in particular some 5D cosmological scenarios in which the extra
dimension does not have to be compactified. In particular, several studies
in the RandallSundrum cosmological model are available:
Some numerical studies have also been carried out, but so
far only generating initial data or integrating data on the brane towards
the bulk:

time symmetric initial data for black holes that are spherical on the brane
( hepth/0007203 )

"evolution" into the bulk of charged black holes ( hepth/0008177
)

initial data for generally relativistic stars ( hepth/0111057
)
This issue is also related to the black
string, since the latter is a solution to the five dimensional Einstein
equation. I am planning to evolve perfect fluid "spherical" stars in this
5D model and try to look for critical phenomena; similar research is being
performed for standard 4D General Relativity by Scott
Noble, here at the UBC group.
Last modified on 23Jan02.