154 citations · 758 across the 26 of their papers we have counts for
17 papers · 1 filter
An ionic clock qubit inside a circular Rydberg atom
Fabian Thielemann, Aaron Götzelmann, Marius Thomas +4
Neutral atoms trapped in optical tweezers and excited to Rydberg states, together with trapped ions, are among the most advanced platforms for quantum simulation and quantum comput…
Microscopic Rydberg electron orbit manipulation with optical tweezers
Homar Rivera-Rodríguez, Matthew T. Eiles, Tilman Pfau +1
Laser cooling and trapping of atomic matter waves in optical potentials has enabled rapid progress in quantum science, particularly when combined with Rydberg excitation of the ato…
Long-lived giant circular Rydberg atoms at room temperature
Einius Pultinevicius, Aaron Götzelmann, Fabian Thielemann +2
Stability achieved by large angular momentum is ubiquitous in nature, with examples ranging from classical mechanics, over optics and chemistry, to nuclear physics. In atoms, angul…
Quadrupole coupling of circular Rydberg qubits to inner shell excitations
Moritz Wirth, Christian Hölzl, Aaron Götzelmann +2
Divalent atoms provide excellent means for advancing control in Rydberg atom-based quantum simulation and computing, due to the second optically active valence electron available.…
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…
Long-Lived Circular Rydberg Qubits of Alkaline-Earth Atoms in Optical Tweezers
Christian Hölzl, Aaron Götzelmann, Einius Pultinevicius +2
Coherence time and gate fidelities in Rydberg atom quantum simulators and computers are fundamentally limited by the Rydberg state lifetime. Circular Rydberg states are highly prom…
Motional ground-state cooling of single atoms in state-dependent optical tweezers
Christian Hölzl, Aaron Götzelmann, Moritz Wirth +3
Laser cooling of single atoms in optical tweezers is a prerequisite for neutral atom quantum computing and simulation. Resolved sideband cooling comprises a well-established method…
Observation of vibrational dynamics of orientated Rydberg-atom-ion molecules
Yi-Quan Zou, Moritz Berngruber, Viraatt S. V. Anasuri +4
Vibrational dynamics in conventional molecules usually takes place on a timescale of picoseconds or shorter. A striking exception are ultralong-range Rydberg molecules, for which d…
Spatial imaging of a novel type of molecular ions
N. Zuber, V. S. V. Anasuri, M. Berngruber +4
Atoms with a highly excited electron, called Rydberg atoms, can form unusual types of molecular bonds. The bond differs from the well known ionic and covalent bonds not only by its…
A pulsed ion microscope to probe quantum gases
C. Veit, N. Zuber, O. A. Herrera-Sancho +5
The advent of the quantum gas microscope allowed for the in situ probing of ultracold gaseous matter on an unprecedented level of spatial resolution. The study of phenomena on ever…
Transport of a single cold ion immersed in a Bose-Einstein condensate
Thomas Dieterle, Moritz Berngruber, Christian Hölzl +4
We investigate transport dynamics of a single low-energy ionic impurity in a Bose-Einstein condensate. The impurity is implanted into the condensate starting from a single Rydberg…
Vibrational quenching of cold molecular ions immersed in their parent gas
Krzysztof Jachymski, Florian Meinert
Hybrid ion-atom systems provide an excellent platform for studies of state-resolved quantum chemistry at low temperatures, where quantum effects may be prevalent. Here we study the…
Indium tin oxide films meet circular Rydberg atoms: prospects for novel quantum simulation schemes
Florian Meinert, Christian Hölzl, Mehmet Ali Nebioglu +4
Long-lived circular Rydberg atoms are picking up increasing interest for boosting coherence times in Rydberg-based quantum simulation. We elaborate a novel approach to stabilize ci…
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 Rydberg Blockade Induced by a Single Ion
Felix Engel, Thomas Dieterle, Thomas Schmid +6
We study the long-range interaction of a single ion with a highly excited ultracold Rydberg atom and report on the direct observation of ion-induced Rydberg excitation blockade med…
An ionic impurity in a Bose-Einstein condensate at sub-microkelvin temperatures
Kathrin S. Kleinbach, Felix Engel, Thomas Dieterle +3
Rydberg atoms immersed in a Bose-Einstein condensate interact with the quantum gas via electron-atom and ion-atom interaction. To suppress the typically dominant electron-neutral i…
Photo-association of trilobite Rydberg molecules via resonant spin-orbit coupling
Kathrin S. Kleinbach, Florian Meinert, Felix Engel +4
We report on a novel method for photo-association of strongly polar trilobite Rydberg molecules. This exotic ultralong-range dimer, consisting of a ground-state atom bound to the R…