Abstract The generation of the entanglement between two two-level atoms interacting with the third atom driven by white noise is investigated when the coupling between atoms is modulated by a pulse function. This paper finds that the initial triggering time and the width of the pulse can generate a peak in the entanglement. There is an optimal width of the pulse for which the entanglement can reach a maximum. The asymmetry of the coupling between atoms can generate different entanglement in the system. The multiple triggers can generate multiple peaks in the entanglement. The separation between two peaks is increased as the width of the pulse is increased.
Received: 06 March 2006
Revised: 26 April 2006
Accepted manuscript online:
Fund: Project supported by the
Special Research Fund for the Doctoral Program of Higher Education,
China (Grant No~20050285002).
Cite this article:
Ren Jie(任杰), Hao Xiang(郝翔), and Zhu Shi-Qun(朱士群) Trigger and control entanglement by atoms with different interaction times 2007 Chinese Physics 16 630
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