摘要
We investigate the bipartite entanglement dynamics of the system composed by three qubits A,B,and C.There is no interaction between A and B,and that of C and B is Dzyaloshinskii-Moriya (DM) spin-orbit interaction.We find that the purity of qubits A and B and the initial state of the qubit C are the two effective parameters tocontrol the entanglement dynamics of the bipartite subsystems.This study sheds some lights on the control of quantumentanglement,which would be helpful for quantum information processing.
基金
Supported by the National Natural Science Foundation of China under Grant Nos.10535010 and 10775123
Research Fund of Education Ministry under Grant No.20070284016
the Natural Science and Technology Foundation of Guizhou Province under Grant Nos.[2009]2267
the Doctor funding of Guizhou Normal University
