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Probabilistic Quantum Teleportation

Pankaj Agrawal·Arun K. Pati
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Abstract

We consider a generalized quantum teleportation protocol for an unknown qubit using non-maximally entangled state as a shared resource. Without recourse to local filtering or entanglement concentration, using standard Bell-state measurement and classical communication one cannot teleport the state with unit fidelity and unit probability. We show that using non-maximally entangled measurements one can teleport an unknown state with unit fidelity albeit with reduced probability, hence probabilistic teleportation. We also give a generalized protocol for entanglement swapping using non-maximally entangled states.

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Pankaj Agrawal, Arun K. Pati. 2002-10-01. Probabilistic Quantum Teleportation. https://doi.org/10.1016/s0375-9601(02)01383-x

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