Controlling the ac Stark effect of RbCs with dc electric and magnetic fields
Abstract
We investigate the effects of static electric and magnetic fields on the differential ac Stark shifts for microwave transitions in ultracold bosonic RbCs molecules, for light of wavelength . Near this wavelength we observe unexpected two-photon transitions that may cause trap loss. We measure the ac Stark effect in external magnetic and electric fields, using microwave spectroscopy of the first rotational transition. We quantify the isotropic and anisotropic parts of the molecular polarizability at this wavelength. We demonstrate that a modest electric field can decouple the nuclear spins from the rotational angular momentum, greatly simplifying the ac Stark effect. We use this simplification to control the ac Stark shift using the polarization angle of the trapping laser.
Keywords
Cite
@article{arxiv.2007.01762,
title = {Controlling the ac Stark effect of RbCs with dc electric and magnetic fields},
author = {Jacob A. Blackmore and Rahul Sawant and Philip D. Gregory and Sarah L. Bromley and Jesús Aldegunde and Jeremy M. Hutson and Simon L. Cornish},
journal= {arXiv preprint arXiv:2007.01762},
year = {2020}
}