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Multiparty Quantum Secret Sharing of Quantum States Using Entanglement States |
| GUO Ying1;HUANG Da-Zu1,2;ZENG Gui-Hua3;LEE Moon Ho4 |
| 1School of Information Science and Engineering, Central South University, Changsha 4100832Department of Information Management, Hunan College of Finance and Economics, Changsha 4102053Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 2002404Department of Information and Communication Engineering, Chonbuk National University, Chonju 561-756, Korea |
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| Cite this article: |
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GUO Ying, HUANG Da-Zu, ZENG Gui-Hua et al 2008 Chin. Phys. Lett. 25 16-19 |
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Abstract A multi-partite-controlled quantum secret sharing scheme using several non-orthogonal entanglement states is presented with unconditional security. In this scheme, the participants share the secret quantum state by exchanging the secret polarization angles of the disordered travel particles. The security
of the secret quantum state is also guaranteed by the non-orthogonal multi-partite-controlled entanglement states, the participants' secret polarizations, and the disorder of the travelling particles. Moreover, the present scheme is secure against the particle-number splitting attack and the intercept-and-resend attack. It may be still secure even if the distributed quantum state is embedded in a not-so-weak coherent-state pulse.
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| Keywords:
03.67.Dd
03.65.Ud
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Received: 21 May 2007
Published: 27 December 2007
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| PACS: |
03.67.Dd
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(Quantum cryptography and communication security)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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