55 citations · 301 across the 17 of their papers we have counts for
17 papers
The PairInteraction Toolkit for Modeling Rydberg Physics in Alkali and Alkaline-Earth-Like Atoms
Johannes Mögerle, Frederic Hummel, Alicia Keil +8
Rydberg atoms provide a powerful platform for exploring strongly interacting quantum systems, both in free space and in structured electromagnetic environments, with growing applic…
Engineering Rydberg-pair interactions in divalent atoms with hyperfine-split ionization thresholds
Frederic Hummel, Sebastian Weber, Johannes Moegerle +5
Quantum information processing with neutral atoms relies on Rydberg excitation for entanglement generation. While the use of heavy divalent or open-shell elements, such as strontiu…
observation of non-polar to strongly polar atom-ion collision dynamics
Moritz Berngruber, Daniel J. Bosworth, Oscar A. Herrera-Sancho +8
The onset of collision dynamics between an ion and a Rydberg atom is studied in a regime characterized by a multitude of collision channels. These channels arise from coupling betw…
Kato's theorem and ultralong-range Rydberg molecules
Matthew T. Eiles, Frederic Hummel
We consider non-adiabatic coupling in the "trilobite"-like long-range Rydberg molecules created by perturbing degenerate high- Rydberg states with a ground-state atom. Due to…
Non-adiabatic interaction effects in the spectra of ultralong-range Rydberg molecules
Rohan Srikumar, Frederic Hummel, Peter Schmelcher
Ultralong-range Rydberg molecules (ULRM) are highly imbalanced bound systems formed via the low-energy scattering of a Rydberg electron with a ground-state atom. We investigate for…
Vibronic interactions in trilobite and butterfly Rydberg molecules
Frederic Hummel, Peter Schmelcher, Matthew T. Eiles
Ultralong-range Rydberg molecules provide an exciting testbed for molecular physics at exaggerated scales. In the so-called trilobite and butterfly Rydberg molecules, the Born-Oppe…
Charged ultralong-range Rydberg trimers
Daniel J. Bosworth, Frederic Hummel, Peter Schmelcher
We show that the recently observed class of long-range ion-Rydberg molecules can be divided into two families of states, which are characterised by their unique electronic structur…
Synthetic dimension-induced conical intersections in Rydberg molecules
Frederic Hummel, Matthew T. Eiles, Peter Schmelcher
We observe a series of conical intersections in the potential energy curves governing both the collision between a Rydberg atom and a ground-state atom and the structure of Rydberg…
Electric field-induced wave-packet dynamics and geometrical rearrangement of trilobite Rydberg molecules
Frederic Hummel, Kevin Keiler, Peter Schmelcher
We investigate the quantum dynamics of ultra-long-range trilobite molecules exposed to homogeneous electric fields. A trilobite molecule consists of a Rydberg atom and a ground-sta…
An ultracold heavy Rydberg system formed from ultra-long-range molecules bound in a stairwell potential
Frederic Hummel, Peter Schmelcher, Herwig Ott +1
We propose a scheme to realize a heavy Rydberg system (HRS), a bound pair of oppositely charged ions, from a gas of ultracold atoms. The intermediate step to achieve large internuc…
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…
Observation of spin-orbit-dependent electron scattering using long-range Rydberg molecules
Markus Deiß, Shinsuke Haze, Joschka Wolf +6
We present experimental evidence for spin-orbit interaction of an electron as it scatters from a neutral atom. The scattering process takes place within a Rb ultralong-range Ry…
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…
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…