@article{peper_heteronuclear_2021,
	title = {Heteronuclear {Long}-{Range} {Rydberg} {Molecules}},
	volume = {126},
	url = {https://link.aps.org/doi/10.1103/PhysRevLett.126.013001},
	doi = {10.1103/PhysRevLett.126.013001},
	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 autoionization 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.},
	number = {1},
	urldate = {2021-01-06},
	journal = {Physical Review Letters},
	author = {Peper, Michael and Deiglmayr, Johannes},
	month = jan,
	year = {2021},
	note = {Publisher: American Physical Society},
	keywords = {Ultracold Rydberg gases},
	pages = {013001},
}

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