A generalized condition for teleportation of the quantum state of an assembly of N two-level system

摘要

We consider the teleportation of quantum information consisting of the quantum state of a set S-1 of N two-level systems (TLSs), using EPR entangled state consisting of set S-2 circle plus S-3 where set S-2 has M TLSs and set S-3 has N TLSs. The Bell state measurement is done on set S-1 circle plus S-2 and a unitary transformation, dependent on this result, on the quantum state of set S-3 generates a replica of the original stated of set S-1. We show rigorously that the teleportaion is possible only if M >= N.