154 citations · 758 across the 26 of their papers we have counts for
27 papers
Electron lattice potentials for ultracold atoms using circular Rydberg orbitals
Aileen A. T. Durst, Einius Pultinevicius, Homar Rivera-Rodríguez +3
Recent advances in experiments using individually trapped atoms have enabled precise control over circular Rydberg electrons with exceptionally long lifetimes. We show that these g…
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…
Coherent Control of the Fine-Structure Qubit in a Single Alkaline-Earth Atom
Govind Unnikrishnan, Philipp Ilzhöfer, Achim Scholz +10
We report on the first realization of a novel neutral atom qubit encoded in the metastable fine-structure states and of single Sr atoms trapped…
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…
In situ observation of chemistry in Rydberg molecules within a coherent solvent
Felix Engel, Shiva Kant Tiwari, Tilman Pfau +2
We often infer the state of systems in nature indirectly, for example, in high-energy physics by the interaction of particles with an ambient medium. We adapt this principle to ene…
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 confinement-induced resonances in a 3D lattice
Deborah Capecchi, Camilo Cantillano, Manfred J. Mark +6
We report on the observation of confinement-induced resonances for strong three-dimensional (3D) confinement in a lattice potential. Starting from a Mott-insulator state with predo…
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…
Error-budgeting for a controlled-phase gate with strontium-88 Rydberg atoms
Alice Pagano, Sebastian Weber, Daniel Jaschke +4
We study the implementation of a high fidelity controlled-phase gate in a Rydberg quantum computer. The protocol is based on a symmetric gate with respect to the two qubits as expe…
Dynamics of atoms within atoms
S. Tiwari, F. Engel, M. Wagner +3
Recent experiments with Bose-Einstein condensates have entered a regime in which thousands of ground-state condensate atoms fill the Rydberg-electron orbit. After the excitation of…
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…
Inelastic collision dynamics of a single cold ion immersed in a Bose-Einstein condensate
Thomas Dieterle, Moritz Berngruber, Christian Hölzl +4
We investigate inelastic collision dynamics of a single cold ion in a Bose-Einstein condensate. We observe rapid ion-atom-atom three-body recombination leading to formation of weak…
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 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…
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…