Multiparty quantum secret sharing with the pure entangled two-photon states

We present a secure multiparty quantum secret sharing scheme. The implementation of this scheme only needs to exploit the pure entangled two-photon pairs, the local unitary operations on single photons and the single-photon measurements with the computational basis, which make it more convenient in a practical application than others. In addition, each pure entangled two-photon pair can carry one bit of classical information and the intrinsic efficiency approaches 100%, since no classical bit needs to be transmitted except those for detection.