Interaction of impurity atoms in Bose-Einstein condensates
Interaction of impurity atoms in Bose-Einstein condensates
复制标题
玻色-爱因斯坦凝聚体中杂质原子的相互作用
DOI：
--
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
M. Fleischhauer
中科院分区：
文献类型：
--
作者：
A. Klein;M. Fleischhauer
用波戈留波夫方法研究了玻色-爱因斯坦凝聚体中两个空间分离的杂质原子通过声子交换的相互作用。杂质原子被深阱和窄阱势控制，并经历由平均场部分和波戈柳波夫声子的真空贡献组成的能级位移。此外，杂质原子之间的声子交换会产生有条件的能量转移，这可以用于原子之间的量子信息传递。
The interaction of two spatially separated impurity atoms through phonon exchange in a Bose-Einstein condensate is studied within a Bogoliubov approach. The impurity atoms are held by deep and narrow trap potentials and experience level shifts which consist of a mean-field part and vacuum contributions from the Bogoliubov phonons. In addition, there is a conditional energy shift resulting from the exchange of phonons between the impurity atoms, which can be employed for a transfer of quantum information between the atoms.