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arXiv · 0803.0607

A study of the efficiency of the class of $W$-states as a quantum channel

Satyabrata Adhikari·Sunandan Gangopadhyay
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Abstract

Recently, a new class of $W$-states has been defined by Agarwal and Pati \cite{agarwal} and it has been shown that they can be used as a quantum channel for teleportation and superdense coding. In this work, we identify those three-qubit states from the set of the new class of $W$-states which are most efficient or suitable for quantum teleportation. We show that with some probability $|W_1>=(1/2)(|100>+|010>+\sqrt{2}|001>)$ is best suited for teleportation channel in the sense that it does not depend on the input state.

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Satyabrata Adhikari, Sunandan Gangopadhyay. 2008-03-05. A study of the efficiency of the class of $W$-states as a quantum channel. https://doi.org/10.1007/s10773-008-9813-z

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