Quantum Secure Direct Communication by Using General Entangled States |
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| Authors: | Yan-Hua Wu Wei-Dong Zhai Wen-Zhen Cao Chong Li |
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| Affiliation: | 1.School of Physics and Optoelectronic Engineering,Dalian University of Technology,Dalian,P.R. China;2.Foundation department,Dalian Neusoft Institute of Information,Dalian,P.R. China |
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| Abstract: | We revisited the quantum secure direct communication (QSDC) by using a notation (Li et al. in Phys. Lett. A 297:121, 2002; Li et al. in Int. J. Theor. Phys. 46(7):1815, 2007) and generalized QSDC to arbitrary finite dimensions, we also figured out the decoding formula for QSDC of arbitrary finite dimensions. In order to overcome the channel noisy, we present a scheme through introduce n auxilians by using quantum swapping. |
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