62 citations · 124 across the 11 of their papers we have counts for
11 papers
Unravelling Interaction and Temperature Contributions in Unpolarized Trapped Fermionic Atoms in the BCS Regime
Sejung Yong, Sian Barbosa, Jennifer Koch +3
In the BCS limit density profiles for unpolarized trapped fermionic clouds of atoms are largely featureless. Therefore, it is a delicate task to analyze them in order to quantify t…
Stabilizing an ultracold Fermi gas against Fermi acceleration to superdiffusion through localization
Sian Barbosa, Maximilian Kiefer-Emmanouilidis, Felix Lang +2
Anderson localization, i.e., destructive quantum interference of multiple-scattering paths, halts transport entirely. Contrarily, time-dependent random forces expedite transport vi…
What can we learn from diffusion about Anderson localization of a degenerate Fermi gas?
Sian Barbosa, Maximilian Kiefer-Emmanouilidis, Felix Lang +2
Disorder can fundamentally modify the transport properties of a system. A striking example is Anderson localization, suppressing transport due to destructive interference of propag…
Stability and sensitivity of interacting fermionic superfluids to quenched disorder
Jennifer Koch, Sian Barbosa, Felix Lang +1
The microscopic pair structure of superfluids has profound consequences on their properties. Delocalized pairs are predicted to be less affected by static disorder than localized p…
Characterizing quantum gases in time-controlled disorder realizations using cross-correlations of density distributions
Silvia Hiebel, Benjamin Nagler, Sian Barbosa +2
The role of disorder on physical systems has been widely studied in the macroscopic and microscopic world. While static disorder is well understood in many cases, the impact of tim…
Making statistics work: a quantum engine in the BEC-BCS crossover
Jennifer Koch, Keerthy Menon, Eloisa Cuestas +5
Heat engines convert thermal energy into mechanical work both in the classical and quantum regimes. However, quantum theory offers genuine nonclassical forms of energy, different f…
Ultracold Bose gases in disorder potentials with spatiotemporal dynamics
Benjamin Nagler, Martin Will, Silvia Hiebel +4
We study experimentally the dissipative dynamics of ultracold bosonic gases in a dynamic disorder potential with tunable correlation time. First, we measure the heating rate of the…
Dipole oscillations of fermionic superfluids along the BEC-BCS crossover in disordered potentials
Benjamin Nagler, Kevin Jägering, Ameneh Sheikhan +5
We investigate dipole oscillations of ultracold Fermi gases along the BEC-BCS crossover through disordered potentials. We observe a disorder-induced damping of oscillations as well…
Observing the loss and revival of long-range phase coherence through disorder quenches
Benjamin Nagler, Sian Barbosa, Jennifer Koch +2
Relaxation of quantum systems is a central problem in nonequilibrium physics. In contrast to classical systems, the underlying quantum dynamics results not only from atomic interac…
Cloud shape of a molecular Bose-Einstein condensate in a disordered trap: a case study of the dirty boson problem
Benjamin Nagler, Milan Radonjić, Sian Barbosa +3
We investigate, both experimentally and theoretically, the static geometric properties of a harmonically trapped Bose-Einstein condensate of Li molecules in laser speckle…
Controlled doping of a bosonic quantum gas with single neutral atoms
Daniel Mayer, Felix Schmidt, Daniel Adam +6
We report on the experimental doping of a Rubidium (Rb) Bose-Einstein condensate (BEC) with individual neutral Cesium (Cs) atoms. We discuss the experimental tools a…