Total teleportation of an entangled state

We present a setup for a direct, total teleportation of a single-particle entangled state. Our scheme consists of a parametric downconversion source, which emits a pair of entangled photons, and a dual Bell measurement system with two beam splitters and two pairs of detectors. An entangled state shared by a pair of beams can be directly transferred to another pair of beams with a 50% probability of success. By a straightforward generalization of the scheme, total teleportation of a multiparticle entangled state can also be performed.