Quantum teleportation for an unknown six-qubit entangled state and principle verification

Abstract

Abstract: Recently, Zhao et al. (Canadian Journal of Physics, 2018, 96(6): 650) proposed a quantum teleportation scheme for one six-qubit unknown state using an eight-qubit cluster state as a quantum channel. In their scheme, the sender needs to operate an eight-qubit von-Neumann projective measurement. Here are some improvements to their scheme, which uses a four-qubit cluster state as a quantum channel to transmit the unknown six-qubit entangled state. In the improved scheme, the sender only needs to perform simple gate operations and single-qubit measurements, then the receiver needs to perform appropriate unitary operations and introduce four auxiliary particles. The task of quantum teleportation can be completed. Moreover, the principle verification experiment of the scheme can be achieved on the cloud-based quantum computing platform of IBM Company. Compared with the previous schemes, the improved scheme has the advantages of low resource consumption, high transmission efficiency and easy experiment implementation.

Key words: quantum optics, cloud-based quantum computing platform, quantum teleportation, single-qubit measurement, four-qubit cluster state

CLC Number:

TN911

CHEN Jinlian, LI Dongfen, ZHOU Qin, YANG Yanhan. Quantum teleportation for an unknown six-qubit entangled state and principle verification[J]. Chinese Journal of Quantum Electronics, 2019, 36(4): 456-463.

References

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