【摘 要】
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We propose a scheme of quantum secret sharing between Alices group and Bobs group with single photons and unitary transformations. In the protocol, one member i
【机 构】
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College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050016
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We propose a scheme of quantum secret sharing between Alices group and Bobs group with single photons and unitary transformations. In the protocol, one member in Alices group prepares a sequence of single photons in one of four different states, while other members directly encode their information on the sequence of single photons via unitary operations; after that, the last member sends the sequence of single photons to Bobs group.Then Bobs, except for the last one, do work similarly. Finally the last member in Bobs group measures the qubits. If the security of the quantum channel is guaranteed by some tests, then the qubit states sent by the last member of Alices group can be used as key bits for secret sharing. It is shown that this scheme is safe.
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