Robust spatial coherence 5$\,\mu$m from a room-temperature atom chip
Atomic Physics
2016-06-22 v3
Abstract
We study spatial coherence near a classical environment by loading a Bose-Einstein condensate into a magnetic lattice potential and observing diffraction. Even very close to a surface (5m), and even when the surface is at room temperature, spatial coherence persists for a relatively long time (500ms). In addition, the observed spatial coherence extends over several lattice sites, a significantly greater distance than the atom-surface separation. This opens the door for atomic circuits, and may help elucidate the interplay between spatial dephasing, inter-atomic interactions, and external noise.
Cite
@article{arxiv.1505.02654,
title = {Robust spatial coherence 5$\,\mu$m from a room-temperature atom chip},
author = {Shuyu Zhou and David Groswasser and Mark Keil and Yonathan Japha and Ron Folman},
journal= {arXiv preprint arXiv:1505.02654},
year = {2016}
}
Comments
15 pages, 14 figures, revised for final publication. This manuscript includes in-depth analysis of the data presented in arXiv:1502.01605