Controlling the ac Stark effect of RbCs with dc electric and magnetic fields
| Autor: | Philip D. Gregory, Rahul Sawant, Sarah L. Bromley, Jesus Aldegunde, Simon L. Cornish, Jacob A. Blackmore, Jeremy M. Hutson |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Condensed matter physics Atomic Physics (physics.atom-ph) FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences 010305 fluids & plasmas Magnetic field Physics - Atomic Physics symbols.namesake Stark effect Quantum Gases (cond-mat.quant-gas) Electric field 0103 physical sciences symbols Physics::Atomic Physics Physics::Chemical Physics 010306 general physics Condensed Matter - Quantum Gases Differential (mathematics) Microwave |
| Zdroj: | Physical review A, 2020, Vol.102(5), pp.053316 [Peer Reviewed Journal] Physcial Review A |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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