Manipulating dipolar and spin-exchange interactions in spin-1 Bose-Einstein condensates
Abstract
It remains a challenge to independently manipulate the magnetic dipolar and the spin-exchange interactions, which are entangled in many spin systems, particularly in spin-1 Bose-Einstein condensates. For this purpose, we put forward a sequence of rf pulses and the periodic dynamical decoupling sequence of optical Feshbach resonance pulses to control the dipolar and the spin-exchange interactions, respectively. Our analytic results and the numerical simulations demonstrate that either of the two interactions can be suppressed to make the other dominate the spin dynamics; furthermore, both of the interactions can be simultaneously suppressed to realize spinor-condensate-based magnetometers with a higher sensitivity. This manipulation method may find its wide applications in magnetic resonance and spintronics.
Keywords
Cite
@article{arxiv.1201.1779,
title = {Manipulating dipolar and spin-exchange interactions in spin-1 Bose-Einstein condensates},
author = {Bo-Yuan Ning and S. Yi and Jun Zhuang and J. Q. You and Wenxian Zhang},
journal= {arXiv preprint arXiv:1201.1779},
year = {2012}
}
Comments
To be published in PRA (5pages, 5 figures,)