High-fidelity quantum secret sharing prevents eavesdropping

(Springer) Eavesdropping is of concern for secrets shared using quantum scale messengers. A quantum secret is akin to an unknown quantum state of two entangled particles carrying the secret. In a new study published in EPJ D, Chen-Ming Bai from Shaanxi Normal University, Xi'an, China, and colleagues calculate the degree of fidelity of the quantum secret once transmitted and explore how to avoid eavesdropping.

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