Journal
COMMUNICATIONS IN THEORETICAL PHYSICS
Volume 55, Issue 5, Pages 795-803Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0253-6102/55/5/12
Keywords
quantum state sharing; three-atom GHZ state; flying qubits; collective noise
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Funding
- National Natural Science Foundation of China [10974020]
- Fundamental Research Funds for the Central Universities
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We present a remote three-party quantum state sharing (QSTS) scheme with three-atom Greenberger-Horne-Zeilinger (GHZ) states assisted by cavity QED and flying qubits. It exploits some photons to act as the flying qubits for setting up the quantum channel securely with three-atom systems in a GHZ state, which maybe make this remote QSTS scheme more practical than some other schemes based on atom systems only or ion-trap systems as photons interact with their environments weakly. The coherence of the stationary atom qubits in cavities provides the convenience for the parties in QSTS to check eavesdropping, different from entangled photon systems. Moreover, the present scheme works in a collective-noise condition and it may be more practical than others in applications in future.
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