Robust multiparty quantum secret key sharing over two collective-noise channels

Zhan-jun Zhang

Physica A: Statistical Mechanics and its Applications, 2006, vol. 361, issue 1, 233-238

Abstract: Based on a polarization-based quantum key distribution protocol over a collective-noise channel [Phys. Rev. Lett. 92 (2004) 017901], a robust (n,n)-threshold scheme of multiparty quantum secret sharing of key over two collective-noise channels (i.e., the collective dephasing channel and the collective rotating channel) is proposed. In this scheme the sharer entirety can establish a joint key with the message sender only if all the sharers collaborate together. Since Bell singlets are enough for use and only single-photon polarization needs to be identified, this scheme is feasible according to the present-day technique.

Keywords: Multiparty quantum secret key sharing; Collective-noise channel (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:361:y:2006:i:1:p:233-238

DOI: 10.1016/j.physa.2005.07.005

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