Abstract
We present two general schemes for multiparty-controlled teleportation of an arbitrary m-qubit state against two types of collective noise by using m pure entangled states as the quantum channel. The first is used to control teleporting for an arbitrary m-qubit state against a collective-dephasing noise with nonmaximally entangled quantum channel, and the second is in teleporting the m-qubit state against the collective-rotation noise. The receiver can reconstruct the original state with an auxiliary qubit and the corresponding unitary operations if he cooperates with all the controllers. The scheme is optimal as the probability that the receiver reconstructs the original state equals to the entanglement of the quantum channel.
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