Quantum Logic Networks for Probabilistic and ControlledTeleportation of Unknown Quantum States

We present simplification schemes forprobabilistic and controlledteleportation of the unknown quantum states of both one particle andtwo particles and construct efficient quantum logic networks forimplementing the new schemes by means of the primitive operationsconsisting of single-qubit gates, two-qubit controlled-not gates,Von Neumann measurement, and classically controlled operations.In these schemes the teleportation are not always successful butwith certain probability.