Experiments on a videotape atom chip: fragmentation and transport studies
Abstract
This paper reports on experiments with ultra-cold rubidium atoms confined in microscopic magnetic traps created using a piece of periodically-magnetized videotape mounted on an atom chip. The roughness of the confining potential is studied with atomic clouds at temperatures of a few microKelvin and at distances between 30 and 80 microns from the videotape-chip surface. The inhomogeneities in the magnetic field created by the magnetized videotape close to the central region of the chip are characterized in this way. In addition, we demonstrate a novel transport mechanism whereby we convey cold atoms confined in arrays of videotape magnetic micro-traps over distances as large as ~ 1 cm parallel to the chip surface. This conveying mechanism enables us to survey the surface of the chip and observe potential-roughness effects across different regions.
Keywords
Cite
@article{arxiv.1003.4490,
title = {Experiments on a videotape atom chip: fragmentation and transport studies},
author = {I. Llorente Garcia and B. Darquie and E. A. Curtis and C. D. J. Sinclair and E. A. Hinds},
journal= {arXiv preprint arXiv:1003.4490},
year = {2015}
}
Comments
29 pages, 22 figures.