Compensation of gravity on cold atoms by a linear optical potential

We demonstrate gravity compensation for an ultracold gas of ^{87}Rb atoms with a time-averaged optical potential. The position of a far-off-resonance beam is temporally modulated with an acousto-optic deflector to efficiently produce a potential with a linear gradient independent of the atomic magne...

Full description

Saved in:
Bibliographic Details
Published in:Physical review research 2020-01, Vol.2 (1), p.013068, Article 013068
Main Authors: Shibata, Kosuke, Ikeda, Hidehiko, Suzuki, Ryota, Hirano, Takuya
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We demonstrate gravity compensation for an ultracold gas of ^{87}Rb atoms with a time-averaged optical potential. The position of a far-off-resonance beam is temporally modulated with an acousto-optic deflector to efficiently produce a potential with a linear gradient independent of the atomic magnetic sublevels. We realize compensation of the gravity sag and preparation of a degenerate gas in a trap with weak vertical confinement. Optical gravity compensation will provide the opportunity to perform experiments under microgravity in a laboratory and broaden the scope of cold atom research.
ISSN:2643-1564
2643-1564
DOI:10.1103/PhysRevResearch.2.013068