78 citations · 209 across the 11 of their papers we have counts for
12 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…
High-NA vectorial hologram optimization
Michael Wischert, Fiona Hellstern, Paul Uerlings +3
We present a vectorial phase-only framework for the gradient-based optimization of computer-generated holograms. Our approach addresses a critical limitation in high numerical aper…
Two-dimensional shelving spectroscopy of ultraviolet ground state transitions in dysprosium
Kevin S. H. Ng, Paul Uerlings, Fiona Hellstern +5
The open inner-shell electronic structure of lanthanides with large magnetic moments gives rise to a rich spectrum of transitions available for laser cooling, trapping, and coheren…
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…
Quantum Carpets of Higgs particles in a Supersolid
Koushik Mukherjee, Malte Schubert, Ralf Klemt +3
Supersolids formed from dipolar Bose-Einstein condensates (BECs) exhibit spontaneous density modulation while maintaining global phase coherence. This state of matter supports gapp…
Josephson vortices and persistent current in a double-ring supersolid system
Malte Schubert, Koushik Mukherjee, Tilman Pfau +1
We theoretically investigate the properties of ultra-cold dipolar atoms in radially coupled, concentric annular traps created by a potential barrier. The non-rotating ground-state…
Optical response of the supersolid polaron
Laurent H. A. Simons, Ralf Klemt, Tilman Pfau +2
The ground-state properties of the supersolid polaron consisting of a neutral impurity immersed in a dipolar supersolid have recently been studied. Here, the optical response of an…
Decoupled sound and amplitude modes in trapped dipolar supersolids
Jens Hertkorn, Philipp Stürmer, Koushik Mukherjee +7
We theoretically investigate elementary excitations of dipolar quantum gases across the superfluid to supersolid phase transition in a toroidal trap. We show how decoupled first so…
Topological transport of a classical droplet in a lattice of time
Tapio Simula, Niels Kjærgaard, Tilman Pfau
Thouless charge pumps are quantum mechanical devices whose operation relies on topology. They provide the means for transporting quantum matter in space lattices with a single quan…
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…
Roton Excitations in an Oblate Dipolar Quantum Gas
Jan-Niklas Schmidt, Jens Hertkorn, Mingyang Guo +7
We observe signatures of radial and angular roton excitations around a droplet crystallization transition in dipolar Bose-Einstein condensates. In situ measurements are used to cha…
Density Fluctuations across the Superfluid-Supersolid Phase Transition in a Dipolar Quantum Gas
J. Hertkorn, J. -N. Schmidt, F. Böttcher +8
Phase transitions share the universal feature of enhanced fluctuations near the transition point. Here we show that density fluctuations reveal how a Bose-Einstein condensate of di…