130 citations · 865 across the 14 of their papers we have counts for
15 papers
Higgs oscillations in a unitary Fermi superfluid
P. Dyke, S. Musolino, H. Kurkjian +7
Symmetry-breaking phase transitions are central to our understanding of states of matter. When a continuous symmetry is spontaneously broken, new excitations appear that are tied t…
Dynamics of a Fermi gas quenched to unitarity
P. Dyke, A. Hogan, I. Herrera +3
We present an experimental study of a two component Fermi gas following an interaction quench into the superfluid phase. Starting with a weakly attractive gas in the normal phase,…
High Frequency Sound in a Unitary Fermi Gas
C. C. N. Kuhn, S. Hoinka, I. Herrera +4
We present an experimental and theoretical study of the phonon mode in a unitary Fermi gas. Using two-photon Bragg spectroscopy, we measure excitation spectra at a momentum of appr…
Contact and sum-rules in a near-uniform Fermi gas at unitarity
C. Carcy, S. Hoinka, M. G. Lingham +4
We present an experimental study of the high-energy excitation spectra of unitary Fermi gases. Using focussed beam Bragg spectroscopy, we locally probe atoms in the central region…
Quantum anomaly and 2D-3D crossover in strongly interacting Fermi gases
T. Peppler, P. Dyke, M. Zamorano +2
We present an experimental investigation of collective oscillations in harmonically trapped Fermi gases through the crossover from two to three dimensions. Specifically, we measure…
Goldstone mode and pair-breaking excitations in atomic Fermi superfluids
Sascha Hoinka, Paul Dyke, Marcus G. Lingham +3
Spontaneous symmetry breaking is a central paradigm of elementary particle physics, magnetism, superfluidity and superconductivity. According to Goldstone's theorem, phase transiti…
Thermodynamics of an attractive 2D Fermi gas
K. Fenech, P. Dyke, T. Peppler +4
Thermodynamic properties of matter are conveniently expressed as functional relations between variables known as equations of state. Here we experimentally determine the compressib…
Criteria for 2D kinematics in an interacting Fermi gas
P. Dyke, K. Fenech, T. Peppler +7
Ultracold Fermi gases subject to tight transverse confinement offer a highly controllable setting to study the two-dimensional (2D) BCS to Berezinskii-Kosterlitz-Thouless superflui…
Local observation of pair-condensation in a Fermi gas at unitarity
M. G. Lingham, K. Fenech, S. Hoinka +1
We present measurements of the local (homogeneous) density-density response function of a Fermi gas at unitarity using spatially resolved Bragg spectroscopy. By analyzing the Bragg…
Precise determination of the structure factor and contact in a unitary Fermi gas
Sascha Hoinka, Marcus Lingham, Kristian Fenech +4
We present a high-precision determination of the universal contact parameter in a strongly interacting Fermi gas. In a trapped gas at unitarity we find the contact to be $3.06 \pm…
Dynamic spin response of a strongly interacting Fermi gas
S. Hoinka, M. Lingham, M. Delehaye +1
We present an experimental investigation of the dynamic spin response of a strongly interacting Fermi gas using Bragg spectroscopy. By varying the detuning of the Bragg lasers, we…
An apparatus for immersing trapped ions into an ultracold gas of neutral atoms
Stefan Schmid, Arne Härter, Albert Frisch +2
We describe a hybrid vacuum system in which a single ion or a well defined small number of trapped ions (in our case Ba or Rb) can be immersed into a cloud of ultracold neu…
A laser based accelerator for ultracold atoms
A. Rakonjac, A. B. Deb, S. Hoinka +3
We present first results on our implementation of a laser based accelerator for ultracold atoms. Atoms cooled to a temperature of 420 nK are confined and accelerated by means of la…
Temperature dependence of the contact in a unitary Fermi gas
E. D. Kuhnle, S. Hoinka, P. Dyke +3
The contact , introduced by Tan, has emerged as a key parameter characterizing universal properties of strongly interacting Fermi gases. For ultracold Fermi gases near a…
Crossover from 2D to 3D in a weakly interacting Fermi gas
P. Dyke, E. D. Kuhnle, S. Whitlock +6
We have studied the transition from two to three dimensions in a low temperature weakly interacting Li Fermi gas. Below a critical atom number, , only the lowest transv…