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Fidelity and Entanglement with Environment Effect |
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| Authors: | Guolan Fu Z Q Chen Huangyun Rao L P Guo Z S Wang |
| Institution: | 1. College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, 330022, People’s Republic of China 2. College of Sciences, Jinggangshan University, Ji’an, 343009, Jiangxi, People’s Republic of China 3. School of Nuclear Engineering Technology, East China Institute of Technology, Fuzhou, Jiangxi, 344000, People’s Republic of China 4. School of Physics and Technology, Wuhan University, Wuhan, 430072, People’s Republic of China |
| Abstract: | A quantum entangling gate is investigated in dissipative system by considering input initial entangled two qubits. By analyzing the relation between the fidelity and the concurrence, we find that the fidelity of gate is strongly correlated to the entanglement of the qubits, where the center positions of entangled death is corresponding to the turning points of the fidelity. The results are helpful for one to implement quantum computation with dissipative effects. |
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