Cold atoms probe the magnetic field near a wire
Condensed Matter
2009-11-10 v1
Abstract
A microscopic Ioffe-Pritchard trap is formed using a straight, current-carrying wire, together with suitable auxiliary magnetic fields. By measuring the distribution of cold rubidium atoms held in this trap, we detect a weak magnetic field component parallel to the wire. This field is proportional to the current in the wire and is approximately periodic along the wire with period m. We find that the decrease of this field with distance from the centre of the wire is well described by the Bessel function , as one would expect for the far field of a transversely oscillating current within the wire.
Cite
@article{arxiv.cond-mat/0308434,
title = {Cold atoms probe the magnetic field near a wire},
author = {M. P. A. Jones and C. J. Vale and D. Sahagun and B. V. Hall and C. C. Eberlein and B. E. Sauer and K. Furusawa and D. Richardson and E. A. Hinds},
journal= {arXiv preprint arXiv:cond-mat/0308434},
year = {2009}
}
Comments
8 pages, 4 figures