activity
20242026
collaborators

6 papers

physics.atom-ph2026

Vibronic quantum dynamics of ultralong-range high- Rydberg molecules

Felix Giering, Rohan Srikumar, Peter Schmelcher

We investigate the non-adiabatic quantum dynamics of ultralong-range Rydberg molecules using a vibronically coupled two-channel treatment. The two-channels are composed of coupled…

physics.atom-ph2025

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

Markus Exner, Rohan Srikumar, Richard Blättner +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 -wave scattering of Rb…

physics.atom-ph2025

Vibrationally highly excited trilobite molecules stabilized by non-adiabatic coupling

Rohan Srikumar, Markus Exner, Richard Blättner +3

We report on the observation of highly excited ( vibrational states of a trilobite ultralong-range Rydberg molecule in Rb. These states manifest spectroscopical…

physics.atom-ph2025

High precision spectroscopy of trilobite Rydberg molecules

Markus Exner, Rohan Srikumar, Richard Blättner +3

We perform three-photon photoassociation to obtain high resolution spectra of Rb trilobite dimers for the principal quantum numbers , and . The large bi…

physics.atom-ph2024

Internal diffraction dynamics of trilobite molecules

Rohan Srikumar, Seth T. Rittenhouse, Peter Schmelcher

Trilobite molecules are ultralong-range Rydberg molecules formed when a high angular momentum Rydberg electron scatters off of a ground-state atom. Their unique electronic structur…

physics.class-ph2024

Classical scattering and fragmentation of clusters of ions in helical confinement

Ansgar Siemens, Peter Schmelcher

We explore the scattering dynamics of classical Coulomb-interacting clusters of ions confined to a helical geometry. Ion clusters of equally charged particles constrained to a heli…