98 citations · 503 across the 18 of their papers we have counts for
18 papers
Single-qubit detection by collective phase imprinting
Kritsana Srakaew, Pascal Weckesser, Daniel Adler +4
The amplification of quantum information carried by a single quantum excitation is a recurring challenge across diverse quantum platforms. The coupling between a single qubit and a…
Microscopy of bosonic charge carriers in staggered magnetic fields
Annabelle Bohrdt, David Wei, Daniel Adler +6
The interplay of spin and charge degrees of freedom is believed to underlie various unresolved phenomena in strongly correlated systems. Quantum simulators based on neutral atoms p…
Competing excitation quenching and charge exchange in ultracold Li-Ba collisions
Xiaodong Xing, Pascal Weckesser, Fabian Thielemann +9
Hybrid atom-ion systems are a rich and powerful platform for studying chemical reactions, as they feature both excellent control over the electronic state preparation and readout a…
Exploring atom-ion Feshbach resonances below the s-wave limit
Fabian Thielemann, Joachim Siemund, Daniel von Schoenfeld +5
Revealing the quantum properties of matter requires a high degree of experimental control accompanied by a profound theoretical understanding. At ultracold temperatures, quantities…
Realization of a Rydberg-dressed extended Bose Hubbard model
Pascal Weckesser, Kritsana Srakaew, Tizian Blatz +6
The competition of different length scales in quantum many-body systems leads to various novel phenomena, including the emergence of correlated dynamics or non-local order. To acce…
Observation of Hilbert-space fragmentation and fractonic excitations in two-dimensional Hubbard systems
Daniel Adler, David Wei, Melissa Will +7
The relaxation behaviour of isolated quantum systems taken out of equilibrium is among the most intriguing questions in many-body physics. Quantum systems out of equilibrium typica…
Rydberg molecules bound by strong light fields
Simon Hollerith, Valentin Walther, Kritsana Srakaew +6
The coupling of an isolated quantum state to a continuum is typically associated with decoherence and decreased lifetime. Here, we demonstrate that Rydberg macrodimers, weakly boun…
Observation of brane parity order in programmable optical lattices
David Wei, Daniel Adler, Kritsana Srakaew +4
The Mott-insulating phase of the two-dimensional (2d) Bose-Hubbard model is expected to be characterized by a non-local brane parity order. Parity order captures the presence of mi…
A subwavelength atomic array switched by a single Rydberg atom
Kritsana Srakaew, Pascal Weckesser, Simon Hollerith +4
Enhancing light-matter coupling at the level of single quanta is essential for numerous applications in quantum science. The cooperative optical response of subwavelength atomic ar…
Realizing distance-selective interactions in a Rydberg-dressed atom array
Simon Hollerith, Kritsana Srakaew, David Wei +10
Measurement-based quantum computing relies on the rapid creation of large-scale entanglement in a register of stable qubits. Atomic arrays are well suited to store quantum informat…
Observation of Feshbach resonances between a single ion and ultracold atoms
Pascal Weckesser, Fabian Thielemann, Dariusz Wiater +6
Controlling physical systems and their dynamics on the level of individual quanta propels both fundamental science and quantum technologies. Trapped atomic and molecular systems, n…
Trapping, Shaping and Isolating of Ion Coulomb Crystals via State-selective Optical Potentials
Pascal Weckesser, Fabian Thielemann, Daniel Hoenig +3
For conventional ion traps, the trapping potential is close to independent of the electronic state, providing confinement for ions dependent primarily on their charge-to-mass ratio…
Mass-selective removal of ions from Paul traps using parametric excitation
Julian Schmidt, Daniel Hönig, Pascal Weckesser +3
We study a method for mass-selective removal of ions from a Paul trap by parametric excitation. This can be achieved by applying an oscillating electric quadrupole field at twice t…
Optical Traps for sympathetic Cooling of Ions with ultracold neutral Atoms
J. Schmidt, P. Weckesser, F. Thielemann +2
We report the trapping of ultracold neutral atoms and ions in a common optical potential in absence of any radiofrequency (RF) fields. We prepare $ \te…
Optical trapping of ion Coulomb crystals
Julian Schmidt, Alexander Lambrecht, Pascal Weckesser +3
The electronic and motional degrees of freedom of trapped ions can be controlled and coherently coupled on the level of individual quanta. Assembling complex quantum systems ion by…
Long lifetimes in optical ion traps
Alexander Lambrecht, Julian Schmidt, Pascal Weckesser +3
We report on single Barium ions confined in a near-infrared optical dipole trap for up to three seconds in absence of any radio-frequency fields. Additionally, the lifetime in a vi…
Dynamics of a single trapped ion immersed in a buffer gas
Bastian Höltkemeier, Pascal Weckesser, Henry López-Carrera +1
We provide a comprehensive theoretical framework for describing the dynamics of a single trapped ion interacting with a neutral buffer gas, thus extending our previous studies on b…
Buffer-gas cooling of a single ion in a multipole radio frequency trap beyond the critical mass ratio
B. Höltkemeier, P. Weckesser, H. López-Carrera +1
We theoretically investigate the dynamics of a trapped ion immersed in a spatially localized buffer gas. For a homogeneous buffer gas, the ion reaches a stable equilibrium only if…