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Triatomic butterfly molecules
Matthew T. Eiles, Christian Fey, Frederic Hummel +1
We detail the rich electronic and vibrational structure of triatomic "butterfly" molecules, ultra-long-range Rydberg molecules bound by resonant -wave scattering. We divide thes…
Ultralong-range Rydberg molecules
Christian Fey, Frederic Hummel, Peter Schmelcher
We review ultralong-range Rydberg molecules (ULRM), which are bound states between a Rydberg atom and one or more ground-state atoms with bond lengths on the order of thousands of…
Precision spectroscopy of negative-ion resonances in ultralong-range Rydberg molecules
Felix Engel, Thomas Dieterle, Frederic Hummel +5
The level structure of negative-ions near the electron detachment limit dictates the low-energy scattering of an electron with the parent neutral atom. We demonstrate that a single…
The building principle of triatomic trilobite Rydberg molecules
Christian Fey, Frederic Hummel, Peter Schmelcher
We investigate triatomic molecules that consist of two ground state atoms and a highly excited Rydberg atom, bound at large internuclear distances of thousands of Ångstroms. In the…
Alignment of s-state Rydberg molecules in magnetic fields
Frederic Hummel, Christian Fey, Peter Schmelcher
We unravel some peculiar properties of ultralong-range Rydberg molecules formed by an -state Rb Rydberg atom and a corresponding ground-state atom whose electronic orbita…
Effective three-body interactions in Cs()-Cs() Rydberg trimers
Christian Fey, Jin Yang, Seth T. Rittenhouse +5
Ultralong-range Rydberg trimer molecules are spectroscopically observed in an ultracold gas of Cs() atoms. The atomic Rydberg state anisotropy allows for the formation of…
Spin-Interaction Effects for Ultralong-range Rydberg Molecules in a Magnetic Field
Frederic Hummel, Christian Fey, Peter Schmelcher
We investigate the fine and spin structure of ultralong-range Rydberg molecules exposed to a homogeneous magnetic field. Each molecule consists of a Rb Rydberg atom whose ou…
Stretching and bending dynamics in triatomic ultralong-range Rydberg molecules
Christian Fey, Markus Kurz, Peter Schmelcher
We investigate polyatomic ultralong-range Rydberg molecules consisting of three ground state atoms bound to a Rydberg atom via - and -wave interactions. By employing the fini…
A comparative analysis of binding in ultralong-range Rydberg molecules
Christian Fey, Markus Kurz, Peter Schmelcher +2
We perform a comparative analysis of different computational approaches employed to explore the electronic structure of ultralong-range Rydberg molecules. Employing the Fermi pseud…