Heteronuclear long-range Rydberg molecules

Abstract

We present the formation of homonuclear Cs2, K2, and heteronuclear CsK long-range Rydberg molecules in a dual-species magneto-optical trap for 39K and 133Cs by one-photon UV photoassociation. The different ground-state-density dependence of homo- and heteronuclear photoassociation rates and the detection of stable molecular ions resulting from auto-ionization provide an unambiguous assignment. We perform bound-bound millimeter-wave spectroscopy of long-range Rydberg molecules to access molecular states not accessible by one-photon photoassociation. Calculations based on the most recent theoretical model and atomic parameters do not reproduce the full set of data from homo- and heteronuclear long-range Rydberg molecules consistently. This shows that photoassociation and millimeter-wave spectroscopy of heteronuclear long-range Rydberg molecules provide a benchmark for the development of theoretical models.

arXiv comment(5 pages article + 10 pages appendices, 16 figures)

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Cited by in corpus (13)

• Rydberg superatoms: An artificial quantum system for quantum information processing and quantum optics
• Observation of vibrational dynamics of orientated Rydberg-atom-ion molecules
• Heteronuclear Rydberg molecules
• Electric field-induced wave-packet dynamics and geometrical rearrangement of trilobite Rydberg molecules
• Non-adiabatic decay of Rydberg-atom-ion molecules
• Green's function treatment of Rydberg molecules with spins
• Non-adiabatic interaction effects in the spectra of ultralong-range Rydberg molecules
• Individual assembly of two-species Rydberg molecules using optical tweezers
• Photodissociation of long-range Rydberg molecules
• The role of Coulomb anti-blockade in the photoassociation of long-range Rydberg molecules
• Internal diffraction dynamics of trilobite molecules
• Spin-orbit-dependent lifetimes of long-range Rydberg molecules
• On the electrostatic interactions involving long-range Rydberg molecules