Markus Exner

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physics.atom-ph2025

Observation of spin singlet butterfly Rydberg molecules in an ultracold atomic Rb gas

Markus Exner, Rohan Srikumar, Richard BlÃ¤ttner +4

We report the observation of spin-singlet ultra-long range Rydberg butterfly molecules consisting of a ground-state atom bound to a Rydberg atom by $P$ -wave scattering of $^{87}$ Rb…

physics.atom-ph2025

Vibrationally highly excited trilobite molecules stabilized by non-adiabatic coupling

Rohan Srikumar, Markus Exner, Richard BlÃ¤ttner +3

We report on the observation of highly excited ( $I^½ \sim 100)$ vibrational states of a trilobite ultralong-range Rydberg molecule in $^{87}$ Rb. These states manifest spectroscopical…

physics.atom-ph2025

High precision spectroscopy of trilobite Rydberg molecules

Markus Exner, Rohan Srikumar, Richard BlÃ¤ttner +3

We perform three-photon photoassociation to obtain high resolution spectra of $^{87}$ Rb trilobite dimers for the principal quantum numbers $n = 22, 24, 25, 26$ , and $27$ . The large bi…