  The D1D5 CFT has provided a useful microscopic model for studying black
holes. The coupling in this theory is a twist deformation whose action on the
vacuum generates a squeezed state. We give a new derivation of the expression
for this squeezed state using the conformal Ward identity; this derivation
provides an insight into several features of the state. We also examine the
squeezed state in a continuum limit where we describe it in terms of position
space correlations created by the twist.
