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International Conference on Natural Computation (ICNC)

Probabilistic teleportation of an arbitrary Multi-qubit state

Lin-Yuan Ren, Cheng Zhang

Published Jul 1, 2011• 0 citations
Publisher

Abstract

in this letter, we describe a protocol for multi-qubit quantum teleportation between two parties with control of many agents in the networks. Our method is different from the method proposed recently [Phys. Lett. A 341 (2005)55–59], since the quantum channels we used is not maximally entangled state. And we discuss the probability which the receiver can teleport an unknown Multi-qubit.

DOI
10.1109/icnc.2011.6022518

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in this letter, we describe a protocol for multi-qubit quantum teleportation between two parties with control of many agents in the networks. Our method is different from the method proposed recently [Phys. Lett. A 341 (2005)55–59], since the quantum channels we used is not maximally entangled state. And we discuss the probability which the receiver can teleport an unknown Multi-qubit.
We present a method to teleport multi-qubit quantum information in an easy way from a sender to a receiver via the control of many agents in a network. Only when all the agents collaborate with the quantum information receiver can the unknown states in the sender's qubits be fully reconstructed in the receiver's qubits. In our method, agents's control parameters are obtained via quantum entanglement swapping. As the realization of the many-agent controlled teleportation is concerned, compared to the recent method [C.P. Yang, et al. , Phys. Rev. A 70 (2004) 022329], our present method considerably reduces the preparation difficulty of initial states and the identification difficulty of entangled states, moreover, it does not need local Hadamard operations and it is more feasible in technology.
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Abstract We propose a novel scheme to probabilistically transmit an arbitrary unknown two-qubit quantum state via Positive Operator-Valued Measurement with the help of two partially entangled states. In this scheme, the teleportation with two senders and two receives can be realized when the information of non-maximally entangled states is only available for the senders. Furthermore, the concrete implementation processes of this proposal are presented, meanwhile the classical communication cost and the successful probability of our scheme are calculated.