Multiparty quantum secret sharing with the pure entangled two-photon states
Quantum Information Processing
High-dimensional deterministic multiparty quantum secret sharing without unitary operations
Quantum Information Processing
Multiple independent quantum states sharing under collaboration of agents in quantum networks
Quantum Information Processing
Multi-party quantum secret sharing with the single-particle quantum state to encode the information
Quantum Information Processing
Quantum private comparison protocol with d-dimensional Bell states
Quantum Information Processing
Multi-party quantum state sharing via various probabilistic channels
Quantum Information Processing
Multi-party quantum key agreement with bell states and bell measurements
Quantum Information Processing
Quantum state sharing against the controller's cheating
Quantum Information Processing
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We present a new scheme for sharing an arbitrary two-qubit quantum state with n agents. In our scheme, the sender Alice first shares n Einsein-Podolsky-Rosen (EPR) pairs in Bell states with n agents. After setting up the secure quantum channel, Alice first applies (n 驴 2) Controlled-Not (CNOT) gate operations, and then performs two Bell-state measurements and (n 驴 2) single-particle measurements (n 2). In addition, all controllers only hold one particle in their hands, respectively, and thus they only need to perform a single-particle measurement on the respective particle with the basis $${\{{\vert}0\rangle, {\vert}1\rangle\}}$$ . Compared with other schemes with Bell states, our scheme needs less qubits as the quantum resources and exchanges less classical information, and thus obtains higher total efficiency.