587 citations · 2.9k across the 49 of their papers we have counts for
50 papers
Universal Defect Statistics in Reverse Quenches
Eduard J. Braun, Daniel Rubin, Margaux Cartier +2
We derive an extension of the generalized Kibble-Zurek mechanism (KZM), which provides a stochastic approach to defect formation, to reverse quench protocols. While the universal s…
Anderson orthogonality scaling in the Rabi-driven heavy Fermi polaron
Michael Rautenberg, Tobias Krom, Eugen Dizer +6
The Anderson orthogonality catastrophe (AOC) is a paradigmatic many-body phenomenon in which a local perturbation induces a macroscopic response of a Fermi sea. We probe signatures…
The heavy Fermi polaron I: the Lithium-Cesium experiment
Michael Rautenberg, Tobias Krom, Eleonora Lippi +2
We present details of an experimental platform for studying Fermi polarons in a quantum-gas mixture. The system consists of about a thousand bosonic Cs impurities immersed…
Characterizing the nitrogen-vacancy center singlet transition and its phonon sideband for absorption-based room-temperature magnetometry
Tobias Probst, Florian Schall, Sebastian Heuft +9
Magnetometry with nitrogen-vacancy (NV) centers in diamond has shown great promise in recent years. In particular, absorption-based magnetometry techniques, employing a cavity to e…
Quantum information scrambling in strongly disordered Rydberg spin systems
Maximilian Müllenbach, Sebastian Geier, Adrian Braemer +5
Despite the fact that power-law interactions occur in a plethora of physical systems, their many-body dynamics is far less understood than that of nearest-neighbor interacting syst…
Time-reversal in a dipolar quantum many-body spin system
Sebastian Geier, Adrian Braemer, Eduard Braun +5
Time reversal in a macroscopic system is contradicting daily experience. It is practically impossible to restore a shattered cup to its original state by just time reversing the mi…
Magneto-optical trap reaction microscope for photoionization of cold strontium atoms
Shushu Ruan, Xinglong Yu, Zhenjie Shen +10
We developed a magneto-optical trap reaction microscope (MOTREMI) for strontium atoms by combining the multi-particle coincident detection with laser cooling technique. Present com…
Few-photon single ionization of cold rubidium in the over-the-barrier regime
Huanyu Ma, Xincheng Wang, Linxuan Zhang +9
Photoionization of the rubidium (Rb) atoms cooled in a magneto-optical trap, characterized by the coexistence of the ground 5 and the excited 5 states, is investi…
Anomalous loss behavior in a single-component Fermi gas close to a -Wave Feshbach resonance
K. Welz, M. Gerken, B. Zhu +4
We theoretically investigate three-body losses in a single-component Fermi gas near a -wave Feshbach resonance in the interacting, non-unitary regime. We extend the cascade mode…
Pair localization in dipolar systems with tunable positional disorder
Adrian Braemer, Titus Franz, Matthias Weidemüller +1
Strongly interacting quantum systems subject to quenched disorder exhibit intriguing phenomena such as glassiness and many-body localization. Theoretical studies have mainly focuse…
Ultrafast Many-Body Dynamics in an Ultracold Rydberg-Excited Atomic Mott Insulator
V. Bharti, S. Sugawa, M. Mizoguchi +7
We report the observation and control of ultrafast non-equilibrium many-body electron dynamics in Rydberg-excited spatially-ordered ultracold atoms created from a three-dimensional…
Floquet Hamiltonian Engineering of an Isolated Many-Body Spin System
Sebastian Geier, Nithiwadee Thaicharoen, Clément Hainaut +6
Controlling interactions is the key element for quantum engineering of many-body systems. Using time-periodic driving, a naturally given many-body Hamiltonian of a closed quantum s…
Depletion Imaging of Rydberg atoms in cold atomic gases
M. Ferreira-Cao, V. Gavryusev, T. Franz +4
We present a depletion imaging technique to map out the spatial and temporal dependency of the density distribution of an ultracold gas of Rydberg atoms. Locally resolved absorptio…
Two-dimensional magneto-optical trap as a source for cold strontium atoms
Ingo Nosske, Luc Couturier, Fachao Hu +6
We report on the realization of a transversely loaded two-dimensional magneto-optical trap serving as a source for cold strontium atoms. We analyze the dependence of the source's p…
Relaxation of an isolated dipolar-interacting Rydberg quantum spin system
A. Piñeiro Orioli, A. Signoles, H. Wildhagen +4
How do isolated quantum systems approach an equilibrium state? We experimentally and theoretically address this question for a prototypical spin system formed by ultracold atoms pr…
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…
Heteronuclear Efimov scenario with positive intraspecies scattering length
Juris Ulmanis, Stephan Häfner, Rico Pires +4
We investigate theoretically and experimentally the heteronuclear Efimov scenario for a three-body system that consists of two bosons and one distinguishable particle with positive…
Sympathetic cooling of OH- ions using ultracold Rb atoms in a dark SPOT
H. López, B. Höltkemeier, J. Glässel +5
We are developing a new hybrid atom-ion trap to study the interaction of ultracold rubidium atoms with mass-selected OH- molecules. The ions are trapped inside an octupole rf-trap…
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…
Correlated Exciton Transport in Rydberg-Dressed-Atom Spin Chains
H. Schempp, G. Günter, S. Wüster +2
We investigate the transport of excitations through a chain of atoms with non-local dissipation introduced through coupling to additional short-lived states. The system is describe…
Direct observation of ultrafast many-body electron dynamics in an ultracold Rydberg gas
Nobuyuki Takei, Christian Sommer, Claudiu Genes +6
Many-body correlations govern a variety of important quantum phenomena such as the emergence of superconductivity and magnetism. Understanding quantum many-body systems is thus one…
Universality of weakly bound dimers and Efimov trimers close to Li-Cs Feshbach resonances
J. Ulmanis, S. Häfner, R. Pires +3
We study the interspecies scattering properties of ultracold Li-Cs mixtures in their two energetically lowest spin channels in the magnetic field range between 800 G and 1000 G. Cl…
Observation of Efimov Resonances in a Mixture with Extreme Mass Imbalance
R. Pires, J. Ulmanis, S. Häfner +4
We observe two consecutive heteronuclear Efimov resonances in an ultracold Li-Cs mixture by measuring three-body loss coefficients as a function of magnetic field near a Feshbach r…
Full counting statistics of laser excited Rydberg aggregates in a one-dimensional geometry
H. Schempp, G. Günter, M. Robert-de-Saint-Vincent +8
We experimentally study the full counting statistics of few-body Rydberg aggregates excited from a quasi-one-dimensional Rydberg gas. We measure asymmetric excitation spectra and i…