Sensitive BEC magnetometry with optimized probing
Atomic Physics
2020-09-17 v1
Abstract
An improved spatial magnetometer using a spinor Bose-Einstein condensate of Rb atoms is realized utilizing newly developed two-polarization phase contrast imaging. The optical shot noise is suppressed by carefully choosing the probe parameters. We attain a dc-magnetic field sensitivity of 7.7 over a measurement area of 28 . The attained sensitivity per unit area is superior to that for other modern low-frequency magnetometers with micrometer-order spatial resolution. This result is a promising step for realizing quantum-enhanced magnetometry surpassing classical methods.
Cite
@article{arxiv.2009.07569,
title = {Sensitive BEC magnetometry with optimized probing},
author = {Naota Sekiguchi and Aki Torii and Hiroyuki Toda and Ryohei Kuramoto and Daiki Fukuda and Takuya Hirano and Kosuke Shibata},
journal= {arXiv preprint arXiv:2009.07569},
year = {2020}
}
Comments
12 pages, 3 figures, submitted to Physical Review Letters