  We investigate schemes to dynamically create many particle entangled states
of a two component Bose-Einstein condensate in a very short time proportional
to 1/N where $N$ is the number of condensate particles. For small $N$ we
compare exact numerical calculations with analytical semiclassical estimates
and find very good agreement for $N \geq 50$. We also estimate the effect of
decoherence on our scheme, study possible scenarios for measuring the entangled
states, and investigate experimental imperfections.
