  Modifications to the Friedmann equation in brane cosmology can have important
implications for early universe phenomena such as inflation and the generation
of the baryon asymmetry. In the framework of braneworld cosmology, we discuss a
mechanism for baryogenesis via leptogenesis in the supersymmetric context,
where the sneutrino is responsible for both inflation and the generation of the
baryon asymmetry in the universe.
