510 citations · 3k across the 22 of their papers we have counts for
23 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…
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…
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…
Nonlinear absorption in interacting Rydberg electromagnetically-induced-transparency spectra on two-photon resonance
Annika Tebben, Clément Hainaut, Andre Salzinger +6
We experimentally investigate the nonlinear transmission spectrum of coherent light fields propagating through a Rydberg EIT medium with strong atomic interactions. In contrast to…
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…
Blockade-induced resonant enhancement of the optical nonlinearity in a Rydberg medium
Annika Tebben, Clément Hainaut, Valentin Walther +4
We predict a resonant enhancement of the nonlinear optical response of an interacting Rydberg gas under conditions of electromagnetically induced transparency. The enhancement orig…
Experimental Characterization of Two-Particle Entanglement through Position and Momentum Correlations
Andrea Bergschneider, Vincent M. Klinkhamer, Jan Hendrik Becher +5
Quantum simulation is a rapidly advancing tool to gain insight into complex quantum states and their dynamics. Trapped ion systems have pioneered deterministic state preparation an…
High temperature pairing in a strongly interacting two-dimensional Fermi gas
Puneet A. Murthy, Mathias Neidig, Ralf Klemt +7
We observe many-body pairing in a two-dimensional gas of ultracold fermionic atoms at temperatures far above the critical temperature for superfluidity. For this, we use spatially…
Interaction-Enhanced Imaging of Rydberg P states
Vladislav Gavryusev, Miguel Ferreira-Cao, Armin Kekić +2
The Interaction Enhanced Imaging technique allows to detect the spatial distribution of strongly interacting impurities embedded within a gas of background atoms used as a contrast…
Equation of State of Ultracold Fermions in the 2D BEC-BCS Crossover Region
I. Boettcher, L. Bayha, D. Kedar +7
We report the experimental measurement of the equation of state of a two-dimensional Fermi gas with attractive s-wave interactions throughout the crossover from a weakly coupled Fe…
Observation of the Berezinskii-Kosterlitz-Thouless Phase Transition in an Ultracold Fermi Gas
P. A. Murthy, I. Boettcher, L. Bayha +7
We experimentally investigate the first-order correlation function of a trapped Fermi gas in the two-dimensional BEC-BCS crossover. We observe a transition to a low-temperature sup…
Two Fermions in a double well: Exploring a fundamental building block of the Hubbard model
Simon Murmann, Andrea Bergschneider, Vincent M. Klinkhamer +3
We have prepared two ultracold fermionic atoms in an isolated double-well potential and obtained full control over the quantum state of this system. In particular, we can independe…
Observation of pair condensation in the quasi-2D BEC-BCS crossover
M. G. Ries, A. N. Wenz, G. Zürn +7
The condensation of fermion pairs lies at the heart of superfluidity. However, for strongly correlated systems with reduced dimensionality the mechanisms of pairing and condensatio…
Matter wave Fourier optics with a strongly interacting two-dimensional Fermi gas
P. A. Murthy, D. Kedar, T. Lompe +5
We demonstrate and characterize an experimental technique to directly image the momentum distribution of a strongly interacting two-dimensional quantum gas with high momentum resol…
Pairing in few-fermion systems with attractive interactions
G. Zürn, A. N. Wenz, S. Murmann +3
We have studied quasi one-dimensional few-particle systems consisting of one to six ultracold fermionic atoms in two different spin states with attractive interactions. We probe th…
From Few to Many: Observing the Formation of a Fermi Sea One Atom at a Time
A. N. Wenz, G. Zürn, S. Murmann +3
Knowing when a physical system has reached sufficient size for its macroscopic properties to be well described by many-body theory is difficult. We investigate the crossover from f…
Coherent molecule formation in anharmonic potentials near confinement-induced resonances
S. Sala, G. Zürn, T. Lompe +5
We perform a theoretical and experimental study of a system of two ultracold atoms with tunable interaction in an elongated trapping potential. We show that the coupling of center-…
Precise characterization of ^6Li Feshbach resonances using trap-sideband resolved RF spectroscopy of weakly bound molecules
G. Zürn, T. Lompe, A. N. Wenz +3
We have performed radio-frequency dissociation spectroscopy of weakly bound ^6Li_2 Feshbach molecules using low-density samples of about 30 molecules in an optical dipole trap. Com…
Fermionization of two distinguishable fermions
G. Zürn, F. Serwane, T. Lompe +4
In this work we study a system of two distinguishable fermions in a 1D harmonic potential. This system has the exceptional property that there is an analytic solution for arbitrary…
Deterministic Preparation of a Tunable Few-Fermion System
F. Serwane, G. Zürn, T. Lompe +3
Systems consisting of few interacting fermions are the building blocks of matter with atoms and nuclei being the most prominent examples. We have created an artificial few-body qua…
Radio Frequency Association of Efimov Trimers
Thomas Lompe, Timo B. Ottenstein, Friedhelm Serwane +3
The quantum-mechanical three-body problem is one of the fundamental challenges of few-body physics. When the two-body interactions become resonant, an infinite series of universal…
Atom-Dimer Scattering in a Three-Component Fermi Gas
T. Lompe, T. B. Ottenstein, F. Serwane +4
Ultracold gases of three distinguishable particles with large scattering lengths are expected to show rich few-body physics related to the Efimov effect. We have created three diff…
A Universal Trimer in a Three-Component Fermi Gas
A. N. Wenz, T. Lompe, T. B. Ottenstein +3
We show that the recently measured magnetic field dependence of three-body loss in a three-component mixture of ultracold Li atoms [1,2] can be explained by the presence of a u…