  We propose a Procrustean entanglement concentration scheme for continuous
variable states inspired by the scheme proposed in Fiurasek et. al. Phys. Rev.
A 67, 022304, (2003). We show that the eight-port homodyne measurement of
Fiurasek et. al. Phys. Rev. A 67, 022304, (2003) can be replaced by a balanced
homodyne measurement with the advantage of providing a success criterion that
allows Alice and Bob to determine if entanglement concentration was achieved.
In addition, it facilitates a straightforward and feasible experimental
implementation.
