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 ${}^{87}$Rb${}^{133}$Cs molecules, for light of wavelength $\lambda =1064\mathrm{nm}$. 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.

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Cited by in corpus (16)

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• Controlling the ac Stark effect of RbCs with dc electric and magnetic fields
• Preparation of one ${}^{87}$Rb and one ${}^{133}$Cs atom in a single optical tweezer
• Preparation of ${}^{87}$Rb and ${}^{133}$Cs in the motional ground state of a single optical tweezer
• Observation of resonant dipolar collisions in ultracold ${}^{23}$Na${}^{87}$Rb rotational mixtures
• Anisotropic Polarizability of Ultracold Ground-state ${}^{23}$Na${}^{87}$Rb Molecules
• Rotational properties of two interacting cold polar molecules: linear, symmetric, and asymmetric tops
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• Multi-state detection and spatial addressing in a microscope for ultracold molecules
• Control of Dipolar Dynamics by Geometrical Programming
• Scalable platform for qudit-based quantum computing using polar molecules