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Optical Fiber Communication Conference

Mixed Entangled Coherent Channel:How useful is it for quantum teleportation?

Myungshik Kim, Hyunseok Jeong, J. Lee

Published Jan 1, 2001• 0 citations
Publisher

Abstract

We study an entangled coherent state within the framework of 2×2 dimensional Hilbert space and show that it can perfectly teleport some quantum information. We assess how useful it is when the entangled coherent state decoheres.
DOI
10.1364/icqi.2001.pa12

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A bidirectional quantum teleportation protocol is introduced over a quantum network consisting of more than four members sharing a coherent entangled state, where it is implemented in a perfect or noisy environment. The results show that the amplitude of the coherent state and the decoherence parameter play important roles in maximizing or minimizing this probability. At fixed values of the amplitude and decoherence parameters, the success of probability increases as the number of users increases. The fidelity of the teleported coherent state depends on the type of encoded information, whether entangled/partial or classical information, namely, it depends on the weight parameter. The stable behavior of the fidelity is displayed when users teleport classical information.