359 citations · 809 across the 15 of their papers we have counts for
16 papers
Dual-Microphone Steerable High-Order Neural Differential Beamformer
Weilong Huang, Emanuël A. P. Habets
Linear arrays of omnidirectional microphones produce beampatterns that are symmetric about the array axis. For these arrays, a beamformer is considered steerable if its beampattern…
A Robust Strontium Tweezer Apparatus for Quantum Computing
Marijn Venderbosch, Rik van Herk, Zhichao Guo +11
Neutral atoms for quantum computing applications show promise in terms of scalability and connectivity. We demonstrate the realization of a versatile apparatus capable of stochasti…
-Enhanced Gray Molasses Cooling of Rb Atoms in Tweezers Using the D Line
Deon Janse van Rensburg, Rogier Venderbosch, Yuri van der Werf +5
We demonstrate the implementation of -enhanced gray molasses cooling on the D line of Rb atoms in an optical tweezer array. This technique yields lower atomic tempera…
Fidelity Relations in an Array of Neutral Atom Qubits -- Experimental Validation of Control Noise
Deon Janse van Rensburg, Robert de Keijzer, Rogier Venderbosch +5
Noise is a hindering factor for current-era quantum computers. In this study, we experimentally validate the theoretical relationships between amplitude noise of the control signal…
Ultracold ion-atom experiments: cooling, chemistry, and quantum effects
Rianne S. Lous, Rene Gerritsma
Experimental setups that study laser-cooled ions immersed in baths of ultracold atoms merge the two exciting and well-established fields of quantum gases and trapped ions. These ex…
Observation of Chemical Reactions between a Trapped Ion and Ultracold Feshbach Dimers
H. Hirzler, R. S. Lous, E. Trimby +3
We measure chemical reactions between a single trapped Yb ion immersed in an ultracold bath of Li atoms containing trace amounts of Li dimers. This produces LiY…
Buffer gas cooling of ions in time-dependent traps using ultracold atoms
E. Trimby, H. Hirzler, H. Fürst +3
For exploration of quantum effects with hybrid atom-ion systems, reaching ultracold temperatures is the major limiting factor. In this work, we present results on numerical simulat…
Controlling the nature of a charged impurity in a bath of Feshbach dimers
Henrik Hirzler, Eleanor Trimby, Rianne S. Lous +3
We theoretically study the dynamics of a trapped ion that is immersed in an ultracold gas of weakly bound atomic dimers created by a Feshbach resonance. Using quasi-classical simul…
Experimental setup for studying an ultracold mixture of trapped Yb-Li
H. Hirzler, T. Feldker, H. Fürst +7
We describe and characterize an experimental apparatus that has been used to study interactions between ultracold lithium atoms and ytterbium ions. The preparation of ultracold clo…
Breathing Mode of a BEC Repulsively Interacting with a Fermionic Reservoir
Bo Huang, Isabella Fritsche, Rianne S. Lous +4
We investigate the fundamental breathing mode of a small-sized elongated Bose-Einstein condensate coupled to a large Fermi sea of atoms. Our observations show a dramatic shift of t…
Probing the Interface of a Phase-Separated State in a Repulsive Bose-Fermi Mixture
Rianne S. Lous, Isabella Fritsche, Michael Jag +4
We probe the interface between a phase-separated Bose-Fermi mixture consisting of a small BEC of K residing in a large Fermi sea of Li. We quantify the residual spatial…
Thermometry of a deeply degenerate Fermi gas with a Bose-Einstein condensate
Rianne S. Lous, Isabella Fritsche, Michael Jag +2
We measure the temperature of a deeply degenerate Fermi gas, by using a weakly interacting sample of heavier bosonic atoms as a probe. This thermometry method relies on the thermal…
Lifetime of Feshbach dimers in a Fermi-Fermi mixture of Li and K
Michael Jag, Marko Cetina, Rianne S. Lous +3
We present a joint experimental and theoretical investigation of the lifetime of weakly bound dimers formed near narrow interspecies Feshbach resonances in mass-imbalanced Fermi-Fe…
Ultrafast many-body interferometry of impurities coupled to a Fermi sea
M. Cetina, M. Jag, R. S. Lous +8
The fastest possible collective response of a quantum many-body system is related to its excitations at the highest possible energy. In condensed-matter systems, the corresponding…
Decoherence of Impurities in a Fermi Sea of Ultracold Atoms
Marko Cetina, Michael Jag, Rianne S. Lous +4
We investigate the decoherence of K impurities interacting with a three-dimensional Fermi sea of Li across an interspecies Feshbach resonance. The decoherence is measu…
Observation of a Strong Atom-Dimer Attraction in a Mass-Imbalanced Fermi-Fermi Mixture
Michael Jag, Matteo Zaccanti, Marko Cetina +5
We investigate a mixture of ultracold fermionic K atoms and weakly bound LiK dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio…