Deterministic secure quantum communication against collective-dephasing noise by using EPR pairs and auxiliary photons |
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Authors: | Li Dong Ya-Jun Gao Feng Chi |
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Institution: | Department of Physics, Bohai University, 19 Sci-Tech Road, Jinzhou, LiaoNing 121000, PR China |
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Abstract: | A deterministic secure quantum communication against collective-dephasing noise is proposed. Alice constructs two sets of three-photon bases with EPR (Einstein-Podolsky-Rosen) pairs in the state |Ψ+〉 or |Ψ-〉 and auxiliary single photons in the state |H〉. And then she sends them to Bob. Bob can get the secret message by his single-photon measurement outcomes and two public message strings from Alice if the quantum channel is secure. The scheme does not need photon storing technique and only single-photon measurement is necessary. |
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Keywords: | 03 67 Hk 03 67 Dd 03 65 Ud |
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