High-Resolution Magnetometry with a Spinor Bose-Einstein Condensate
其他凝聚态物理
2009-11-11 v1
摘要
We demonstrate a precision magnetic microscope based on direct imaging of the Larmor precession of a Rb spinor Bose-Einstein condensate. This magnetometer attains a field sensitivity of 8.3 pT/Hz over a measurement area of 120 m, an improvement over the low-frequency field sensitivity of modern SQUID magnetometers. The corresponding atom shot-noise limited sensitivity is estimated to be 0.15 pT/Hz for unity duty cycle measurement. The achieved phase sensitivity is close to the atom shot-noise limit suggesting possibilities of spatially resolved spin-squeezed magnetometry. This magnetometer marks a significant application of degenerate atomic gases to metrology.
引用
@article{arxiv.cond-mat/0612685,
title = {High-Resolution Magnetometry with a Spinor Bose-Einstein Condensate},
author = {M. Vengalattore and J. M. Higbie and S. R. Leslie and J. Guzman and L. E. Sadler and D. M. Stamper-Kurn},
journal= {arXiv preprint arXiv:cond-mat/0612685},
year = {2009}
}