Two-party quantum key agreement protocols under collective noise channel |
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Authors: | Hao Gao Xiao-Guang Chen Song-Rong Qian |
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Affiliation: | 1.Department of Communication Science and Engineering,Fudan University,Shanghai,China |
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Abstract: | Recently, quantum communication has become a very popular research field. The quantum key agreement (QKA) plays an important role in the field of quantum communication, based on its unconditional security in terms of theory. Among all kinds of QKA protocols, QKA protocols resisting collective noise are widely being studied. In this paper, we propose improved two-party QKA protocols resisting collective noise and present a feasible plan for information reconciliation. Our protocols’ qubit efficiency has achieved 26.67%, which is the best among all the two-party QKA protocols against collective noise, thus showing that our protocol can improve the transmission efficiency of quantum key agreement. |
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