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

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

2008-03-05

arxiv.org/abs/0803.0607v1

IJTP: Vol.48, Issue-2, 403 (2009)

Physics

Quantum Physics

7 pages, Latex

Scientific paper

10.1007/s10773-008-9813-z

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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