Localizing spin dynamics in a spin-1 Bose-Einstein condensate via magnetic pulses
Quantum Gases
2015-08-05 v1
Abstract
Spin exchange interaction between atoms in a spin-1 Bose-Einstein condensate causes atomic spin evolving periodically under the single spatial mode approximation in the mean field theory. By applying fast magnetic pulses according to a two-step or a four-step control protocol, we find analytically that the spin dynamics is significantly suppressed for an arbitrary initial state. Numerical calculations under single mode approximation are carried out to confirm the validity and robustness of these protocols. This localization method can be readily utilized to improve the sensitivity of a magnetometer based on spin-1 Bose-Einstein condensates.
Cite
@article{arxiv.1503.01828,
title = {Localizing spin dynamics in a spin-1 Bose-Einstein condensate via magnetic pulses},
author = {Huanbin Li and Zhengguo Pu and M. S. Chapman and Wenxian Zhang},
journal= {arXiv preprint arXiv:1503.01828},
year = {2015}
}
Comments
6 pages, 5 figures