Phys. Rev. A 71, 022321 (2005) [9 pages]Quantum secret sharing using product statesReceived 19 June 2003; revised 28 May 2004; published 28 February 2005 This study proposes quantum secret sharing protocols using product states. The first two protocols adopt the quantum key distribution protocol using product states [ Guo et al. Phys. Rev. A 64 042301 (2001)]. In these two protocols, the sender does not reveal any information about the qutrits until confirming that each receiver has received a qutrit. This study also considers the security and some possible eavesdropping strategies. In the third proposed protocol, three-level Bell states are exploited for qutrit preparation via nonlocality swapping. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.71.022321
DOI:
10.1103/PhysRevA.71.022321
PACS:
03.67.Dd, 03.67.Hk
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