点击次数：

论文类型：期刊论文

发表时间：2012-07-28

发表刊物：JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

收录刊物：SCIE、EI、Scopus

卷号：45

期号：14

ISSN号：0953-4075

摘要：The heteronuclear atomic collision in the presence of a radio frequency (RF) electric field and a dc magnetic field is investigated theoretically by using the asymptotic bound state model. A RF field can be used to modify Feshbach resonance by choosing suitable intensity and frequency. The control mechanism is based on the interaction of the RF electric field with the instantaneous dipole moment of the collision atomic pair. We find an interesting phenomenon: the character exchange of the Feshbach resonances and resonance interference modulated by the RF field takes place in the ultracold collision of Li-6 and K-40. This resonance interference may be used to modify the interactions in ultracold quantum gases.