Probe brane dynamics on cosmological brane backgrounds
arXiv:1401.3664 · doi:10.1016/j.physletb.2014.10.030
Abstract
We consider the dynamics of a single probe brane on various cosmological brane backgrounds. The on-shell condition of the static probe brane leads to the supersymmetric intersection rules for static BPS configurations, though the cosmological backgrounds do not preserve any supersymmetries. This is a remarkable feature associated with the cosmological backgrounds because in the static background the on-shell condition of the static brane gives no constraint on the brane configuration. Furthermore, it follows that under this condition there is no velocity-independent force for the probe brane even on the cosmological backgrounds.
14 pages, LaTeX, typos corrected, Journal version