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Quantum information transfer and entanglement with SQUID qubits in cavity QED: A dark-state scheme with tolerance for nonuniform device parameter
Yang, Chui-Ping Chu, Shih-I Han, Siyuan
Yang, Chui-Ping
Chu, Shih-I
Han, Siyuan
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Abstract
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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2004-03
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AMERICAN PHYSICAL SOC
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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)