Entanglement of Non-symmetric Two Charge Qubits Induced by a Damped Cavity |
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| Authors: | LI Zhao-Xin LI Jun-Gang LI Juan-Juan CUI Hui-Ping |
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| Affiliation: | 1. Department of Applied Physics, School of Science,Shandong University of Science and Technology, Qingdao 266510, China;2. Department of Physics, School of Science, BeijingInstitute of Technology, Beijing 100081, China |
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| Abstract: | Two charge qubits being coupled to a damped cavity with different couplings are considered. The dynamical evolution of the entanglement between the two qubits is demonstrated analytically or numerically. It is found that with the cavity dissipation, the steady entanglement between the two qubits can be achieved. The two qubits being initially in the separable and most mixed state can be easily induced to a steady entangled state, and the relative difference of the couplings can be used to enhance the steady entanglement between the two charge qubits. |
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| Keywords: | charge qubit entanglement dissipation |
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