Entanglement reciprocation between two charge
qubits and two-cavity field

doi:10.1007/s11467-008-0030-2

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Front. Phys. ›› 2008, Vol. 3 ›› Issue (3) : 258-263. DOI: 10.1007/s11467-008-0030-2

Entanglement reciprocation between two charge qubits and two-cavity field

CUI Hui-ping, SHAN Yan, ZOU Jian, SHAO Bin

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Abstract

We propose a simple scheme to generate two-mode entangled coherent state in two separated cavities and realize the entanglement reciprocation between the superconducting charge qubits and continuous-variable system. By measuring the state of charge qubits, we find that the entanglement of two charge qubits, which are initially prepared in the maximally entangled state, can be transferred to the two-cavity field, and at this time the two-cavity field is in the entangled coherent state. We also find that the entanglement can be retrieved back to the two charge qubits after measuring the state of the two-cavity field.

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CUI Hui-ping, SHAN Yan, ZOU Jian, SHAO Bin. Entanglement reciprocation between two charge qubits and two-cavity field. Front. Phys., 2008, 3(3): 258‒263 https://doi.org/10.1007/s11467-008-0030-2

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