510 citations · 3k across the 15 of their papers we have counts for
15 papers
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…
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…
Long timescale dynamics of spin textures in a degenerate F=1 Rb spinor Bose gas
J. Guzman, G. -B. Jo, A. N. Wenz +3
We investigate the long-term dynamics of spin textures prepared by cooling unmagnetized spinor gases of F=1 Rb to quantum degeneracy, observing domain coarsening and a stron…
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…
Collisional stability of a three-component degenerate Fermi gas
T. B. Ottenstein, T. Lompe, M. Kohnen +2
We report on the creation of a degenerate Fermi gas consisting of a balanced mixture of atoms in three different hyperfine states of Li. This new system consists of three disti…