LI Jun-Gang1,2**, ZOU Jian1,2**, XU Bao-Ming 1,2,SHAO Bin 1,2
1Department of Physics, Beijing Institute of Technology, Beijing 100081 2Key Laboratory of Cluster Science of Ministry of Education, Beijing Institute of Technology, Beijing 100081
Quantum Correlation Generation in a Damped Cavity
LI Jun-Gang1,2**, ZOU Jian1,2**, XU Bao-Ming 1,2,SHAO Bin 1,2
1Department of Physics, Beijing Institute of Technology, Beijing 100081 2Key Laboratory of Cluster Science of Ministry of Education, Beijing Institute of Technology, Beijing 100081
摘要Dynamic evolutions of the quantum discord and entanglement between two charge qubits located inside a damped cavity are demonstrated analytically. It is found that with cavity dissipation, the dynamics of the quantum discord between two qubits is sensitive to the degree of mixing of the initial qubits' state. This is different from steady entanglement, which is independent of the degree of mixing of the initial state of the qubits.
Abstract：Dynamic evolutions of the quantum discord and entanglement between two charge qubits located inside a damped cavity are demonstrated analytically. It is found that with cavity dissipation, the dynamics of the quantum discord between two qubits is sensitive to the degree of mixing of the initial qubits' state. This is different from steady entanglement, which is independent of the degree of mixing of the initial state of the qubits.
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2011, Vol. 28 
