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Universal Three-Party Quantum Secret Sharing Against Collective Noise |
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| Authors: | YANG Yu-Guang WANG Yuan TENG Yi-Wei WEN Qiao-Yan |
| Affiliation: | 1.College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, China;2.State Key Laboratory of Networking and Switching Technology, Beijing;University of Posts and Telecommunications, Beijing 100876, China;3.State Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China;4.State Key Laboratory of Information Security (Graduate University of Chinese Academy of Sciences), Beijing 100049, China |
| Abstract: | we present a robust and universal quantum secret sharing protocol with four-qubit decoherence-free (DF) states against collective noise. The transmission's safety is ensured by the nonorthogonality of the noiseless states traveling on the quantum channel. Although this scheme uses entangled states for encoding, only single-particle product measurements are required. |
| Keywords: | quantum secret sharing 03.67.Hk decoherence-free collective noise |
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