Quantum-information distribution via entanglement - art. no. 032311

We present a generalization of quantum teleportation that distributes quant um information from a sender's d-level particle to N-o particles held by re mote receivers via an initially shared multiparticle entangled state. This entangled state functions as a multiparty quantum information distribution channel between the sender and the receivers. The structure of the distribu tion channel determines how quantum information is processed. Our generaliz ed teleportation scheme allows multiple receivers at arbitrary locations, a nd can be used for applications such as optimal quantum information broadca sting, asymmetric telecloning, and quantum error correction.