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Quantum Teleportation of Four-particle State of General Formation Without the Postulation of Collapse

Zhang Ping, Yan Feng-Li

Published Jan 1, 2005• 0 citations
OpenAlex

Abstract

Based the scheme without the collapse postulation for quantum teleporting that proposed by Busch et al,a scheme for quantum teleporting of a four-particle state of general formation is proposed,which takes into account the action of the measuring device and avoids any reference to the postulation of the state vector collapse.

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ACTA PHOTONICA SINICA•Jan 1, 2010•0 citations
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.