Acta Photonica Sinica, Volume. 39, Issue 9, 1627(2010)

Teleportation of Four Particles W State Through Two EPR States

MA Gang-long and ZHA Xin-wei
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    In order to reduce the measurement times and computation of quantum teleportation, a scheme for teleportation of four-particle W state via two EPR states is proposed. The sender Alice only do one orthogonal complete basises measurement on her own particles in the unknown Four-particles and two EPR states, by the means of 16 orthogonal complete measure basises. Then the sender inform the 16 kinds of measurement results to the receiver by classical channel, the receiver introduce two auxiliary particle B3B4, and do some proper transformation(Toffoli gate, C-Not gate, Pauli-X gate, and Pauli-Z gate) on his own particles. As a result, the 16 kinds of collapse modes will be all restored. In other words, the teleportation of four-particle W state is completely realized. Based on quantum mechanics of superposition operator and the transformation operator, the collapses states can be easily obtained, and Bob′s unitary transformation can also be easily given. Because of using orthogonal complete measurement basises method, the sender only need to do a little measurement. This scheme only need one orthogonal complete basises measurement and a simply unitary transmission, which can be realized easily.

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    MA Gang-long, ZHA Xin-wei. Teleportation of Four Particles W State Through Two EPR States[J]. Acta Photonica Sinica, 2010, 39(9): 1627

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    Paper Information

    Received: Jan. 21, 2010

    Accepted: --

    Published Online: Nov. 4, 2010

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