报告题目: Quantum control of spin interactions in spin-1 Bose condensates

报告人： 张文献教授

(武汉大学物理学院)

时间：2012年10月15日(星期一),下午15：00

地点：山西大学理论所报告厅

Abstract:  Effects of dipolar and spin-exchange interactions are entangled in spin-1

Bose-Einstein condensates, due to their coexistence. We propose to independently

manipulate the magnetic dipolar and the spin-exchange interactions by applying

generalized WAHUHA sequences of rf pulses and by appllying periodic dynamical

decoupling sequences of optical Feshbach resonance pulses, respectively. While

suppressing one interaction, we can make the other interaction dominate the spin

dynamics in the condensates. Furthermore, by suppressing both interactions, this

method can be harnessed to realize spinor-condensate-based magnetometers with a

higher sensitivity.