Quantum information transfer and entanglement with SQUID qubits in cavity QED: A dark-state scheme with tolerance for nonuniform device parameter
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Issue Date
2004-03Author
Yang, Chui-Ping
Chu, Shih-I
Han, Siyuan
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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We investigate the experimental feasibility of realizing quantum information transfer (QIT) and entanglement with SQUID qubits in a microwave cavity via dark states. Realistic system parameters are presented. Our results show that QIT and entanglement with two-SQUID qubits can be achieved with a high fidelity. The present scheme is tolerant to device parameter nonuniformity. We also show that the strong coupling limit can be achieved with SQUID qubits in a microwave cavity. Thus, cavity-SQUID systems provide a new way for production of nonclassical microwave source and quantum communication.
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Yang, CP; Chu, SI; Han, SY. Quantum information transfer and entanglement with SQUID qubits in cavity QED: A dark-state scheme with tolerance for nonuniform device parameter. PHYSICAL REVIEW LETTERS. March 2004. 92(11)
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