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Perfect Teleportation and Superdense Coding With W-States

True tripartite entanglement of the state of a system of three qubits can be classified on the basis of stochastic local operations and classical communications (SLOCC). Such states can be classified in two categories: GHZ states and W-states. It is known that GHZ states can be used for teleportation and superdense coding, but the prototype W-state cannot be. However, we show that there is a class of W-states that can be used for perfect teleportation and superdense coding.

preprint2006arXivOpen access
Pankaj AgrawalArun Pati
quant-ph
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Pankaj AgrawalArun Pati

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