Extending rotational coherence of interacting polar molecules in a spin-decoupled magic trap
Quantum Gases
2018-12-20 v2 Atomic Physics
Abstract
Superpositions of rotational states in polar molecules induce strong, long-range dipolar interactions. Here we extend the rotational coherence by nearly one order of magnitude to 8.7(6) ms in a dilute gas of polar NaK molecules in an optical trap. We demonstrate spin-decoupled magic trapping, which cancels first-order and reduces second-order differential light shifts. The latter is achieved with a dc electric field that decouples nuclear spin, rotation and trapping light field. We observe density-dependent coherence times, which can be explained by dipolar interactions in the bulk gas.
Cite
@article{arxiv.1810.05702,
title = {Extending rotational coherence of interacting polar molecules in a spin-decoupled magic trap},
author = {Frauke Seeßelberg and Xin-Yu Luo and Ming Li and Roman Bause and Svetlana Kotochigova and Immanuel Bloch and Christoph Gohle},
journal= {arXiv preprint arXiv:1810.05702},
year = {2018}
}
Comments
10 pages, 8 figures