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Quantum Message Exchange Based on Entanglement and Bell-State Measurements

Sung Soon Jang·Hai-Woong Lee
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Abstract

We propose a scheme by which two parties can secretely and simultaneously exchange messages. The scheme requires the two parties to share entanglement and both to perform Bell-state measurements. Only two out of the four Bell states are required to be distinguished in the Bell-state measurements, and thus the scheme is experimentally feasible using only linear optical means. Generalizations of the scheme to high-dimensional systems and to multipartite entanglement are considered. We show also that the proposed scheme works even if the two parties do not possess shared reference frames.

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Sung Soon Jang, Hai-Woong Lee. 2005-04-25. Quantum Message Exchange Based on Entanglement and Bell-State Measurements. https://doi.org/10.1016/j.physleta.2005.03.057

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