Robust Multiparty Quantum Secret Key Sharing Over Two Collective-Noise Channels via Three-Photon Mixed States

We present a robust （n, n）-threshold scheme for multiparty quantum secret sharing of key over two collectivenoise channels （i.e., the collective dephasing channel and the collective rotating channel） via three-photon mixed states, In our scheme, only if all the sharers collaborate together can they...

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Bibliographic Details
Published inCommunications in theoretical physics Vol. 46; no. 4; pp. 607 - 609
Main Author WANG Zhang-Yin YUAN Hao GAO Gan Shou-Hua
Format Journal Article
LanguageEnglish
Published IOP Publishing 15.10.2006
Subjects
三光子混合态
多量子密钥分享
移相通道
集体噪声通道
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Summary:We present a robust （n, n）-threshold scheme for multiparty quantum secret sharing of key over two collectivenoise channels （i.e., the collective dephasing channel and the collective rotating channel） via three-photon mixed states, In our scheme, only if all the sharers collaborate together can they establish a joint key with the message sender and extract the secret message from the sender＇s encrypted message. This scheme can be implemented using only a Bell singlet, a one-qubit state and polarization identification of single photon, so it is completely feasible according to the present-day technique.
Bibliography:11-2592/O3
multiparty quantum secret key sharing, collective-noise channel
O413
ISSN:0253-6102
DOI:10.1088/0253-6102/46/4/008