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We present a scheme for quantum information splitting of an arbitrary three-qubit state by using a seven-qubit composite GHZ-Bell state as quantum channel. We illustrate the procedure in the ion-trap systems, but the scheme can also be realized in other systems. [ABSTRACT FROM AUTHOR]

A new application of the W-class state is investigated for teleportation of an arbitrary three-qubit state. We demonstrate that three sets of W-class states can be used to realize the perfect teleportation of an arbitrary three-qubit state by performing only the three-qubit von Neumann measurements and local unitary operations. [ABSTRACT FROM AUTHOR]

new application of the genuinely entangled six-qubit state introduced recently by Borras et al. [J. Phys. A 40:13407, ] is investigated for the controlled teleportation of an arbitrary three-qubit state. In our scheme, a genuinely entangled six-qubit state and a Bell-state are shared by a sender (Alice), a controller (Charlie) and a receiver (Bob). Both the sender and the controller only need to perform Bell-state measurements (BSMs), the receiver can reconstruct the arbitrary three-qubit state by performing some appropriate unitary transformations on his qubits after he knows the measured results of both the sender and the controller. This controlled teleportation scheme is deterministic. [ABSTRACT FROM AUTHOR]