6 papers
Engineering a Bound State in the Continuum via Quantum Interference
Alexander Guthmann, Louisa Marie Kienesberger, Felix Lang +2
Quantum mechanical interaction potentials typically support either localized bound states below the dissociation threshold or delocalized scattering states above it. While bound st…
Floquet-Engineering of Feshbach Resonances in Ultracold Gases
Alexander Guthmann, Felix Lang, Louisa Marie Kienesberger +2
Scattering resonances are fundamental in science, spanning energy scales from stellar nuclear fusion to ultracold collisions. In ultracold quantum gases, magnetic Feshbach resonanc…
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…