Compensation of gravity on cold atoms by a linear optical potential

Abstract

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.

arXiv comment5 pages, 5 figures

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Cited by in corpus (10)

• Quantum Gases in Optical Boxes
• Observation of ultracold atomic bubbles in orbital microgravity
• Shell potentials for microgravity Bose-Einstein condensates
• Perspective on Quantum Bubbles in Microgravity
• Absence of heating in a uniform Fermi gas created by periodic driving
• Interferometry in an Atomic Fountain with Ytterbium Bose-Einstein Condensates
• Measurement of the dynamic polarizability of Dy atoms near the 626-nm intercombination line
• Detecting Entrainment in Fermi-Bose Mixtures
• Bose-Einstein condensates and the thin-shell limit in anisotropic bubble traps
• All-optical bubble trap for ultracold atoms in microgravity