Trigger and control with different entanglement by atoms interaction times  

作　　者：任杰 郝翔 朱士群 

机构地区：[1]School of Physical Science and Technology, Suzhou University, Suzhou, Jiangsu 215006, China

出　　处：《Chinese Physics B》2007年第3期630-634,共5页中国物理B（英文版）

摘　　要：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.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.

关 键 词：two-level atom trigger entanglement control entanglement PEAK 

分 类 号：O413.3[理学—理论物理]