Journal
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Volume 46, Issue 4, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1751-8113/46/4/045304
Keywords
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Funding
- National Natural Science Foundation [61272058, 61073054, 60873055, 61100001]
- Natural Science Foundation of Guangdong Province of China [10251027501000004]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20100171110042, 20100171120051]
- Fundamental Research Funds for the Central Universities [10lgzd12, 11lgpy36]
- China Postdoctoral Science Foundation [20090460808, 201003375]
- project of SQIG at IT
- FCT
- EU FEDER [QSec PTDC/EIA/67661/2006, AMDSC UTAustin/MAT/0057/2008]
- NoE Euro-NF
- IT Project QuantTel
- FCT [PTDC/EEA-TEL/103402/2008 QuantPrivTel]
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Boyer et al (2007 Phys. Rev. Lett. 99 140501) proposed a novel idea of semi-quantum key distribution, where a key can be securely distributed between Alice, who can perform any quantum operation, and Bob, who is classical. Extending the 'semi-quantum' idea to other tasks of quantum information processing is of interest and worth considering. In this paper, we consider the issue of semi-quantum secret sharing, where a quantum participant Alice can share a secret key with two classical participants, Bobs. After analyzing the existing protocol, we propose a new protocol of semi-quantum secret sharing. Our protocol is more realistic, since it utilizes product states instead of entangled states. We prove that any attempt of an adversary to obtain information necessarily induces some errors that the legitimate users could notice.
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