7.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of KaiserslauternDE112 papers
- University of Koblenz and LandauDE28 papers
- German Research Centre for Artificial IntelligenceDE25 papers
- Fraunhofer Institute for Industrial MathematicsDE13 papers
- Centre National de la Recherche ScientifiqueFR10 papers
- Johannes Gutenberg University MainzDE8 papers
- Ludwig-Maximilians-Universität MünchenDE7 papers
- RWTH Aachen UniversityDE7 papers
- Daimler (Germany)DE6 papers
- Sorbonne UniversitéFR6 papers
- Universidad Autónoma de MadridES6 papers
- Universität HamburgDE6 papers
17 papers · 1 filter
Dynamical signatures of superfluidity and shear rigidity in different phases of a dipolar Bose-Einstein condensate
Soumyadeep Halder, Hari Sadhan Ghosh, Axel Pelster +1
We show that a sudden change in the polarization direction of the magnetic dipole moments of the atoms in a dipolar Bose-Einstein condensate (BEC) can serve as a useful dynamical p…
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…
Understanding Floquet Resonances in Ultracold Gas Scattering
Christoph Dauer, Axel Pelster, Sebastian Eggert
Scattering by a short-range potential with time-periodic interaction strength is investigated with a Floquet-scattering theory. Sharp resonances occur, at which the s-wave scatteri…
Out-of-equilibrium dynamical properties of Bose-Einstein condensates in a ramped up weak disorder
Rodrigo P. A. Lima, Milan Radonjić, Axel Pelster
We theoretically study how the superfluid and condensate deformation of a weakly interacting ultracold Bose gas evolve during the ramp-up of an external weak disorder potential. Bo…
Cavity-induced quantum droplets
Leon Mixa, Milan Radonjić, Axel Pelster +1
Quantum droplets are formed in quantum many-body systems when the competition of quantum corrections with the mean-field interaction yields a stable self-bound quantum liquid. We p…
Engineering quantum droplet formation by cavity-induced long-range interactions
Leon Mixa, Milan Radonjić, Axel Pelster +1
We investigate a dilute Bose gas with both a short-range contact and an effective long-range interaction between the atoms. The latter is induced by the strong coupling to a cavity…
Local temperature control of magnon frequency and direction of supercurrents in a magnon Bose-Einstein condensate
Matthias R. Schweizer, Franziska Kühn, Victor S. L'vov +4
The creation of temperature variations in magnetization, and hence in the frequencies of the magnon spectrum in laser-heated regions of magnetic films, is an important method for s…
Bose-Einstein condensation in systems with flux equilibrium
Victor S. L'vov, Anna Pomyalov, Sergey V. Nazarenko +4
We consider flux equilibrium in dissipative nonlinear wave systems subject to external energy pumping. In such systems, the elementary excitations, or quasiparticles, can create a…
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…
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…
Correlation-enhanced interaction of a Bose-Einstein condensate with parametric magnon pairs and virtual magnons
Victor S. L'vov, Anna Pomyalov, Dmytro A. Bozhko +2
Nonlinear interactions are crucial in science and engineering. Here, we investigate wave interactions in a highly nonlinear magnetic system driven by parametric pumping leading to…
Rapid-prototyping of microscopic thermal landscapes in Brillouin light scattering spectroscopy
Matthias R. Schweizer, Franziska Kühn, Malte Koster +3
Since temperature and its spatial and temporal variations affect a wide range of physical properties of material systems, they can be used to create reconfigurable spatial structur…
Bose-Einstein condensates and the thin-shell limit in anisotropic bubble traps
Elias J. P. Biral, Natália S. Móller, Axel Pelster +1
Within the many different models that appeared with the use of cold atoms to design BECs the bubble trap shaped potential has been of great interest. For the anisotropic bubble tra…
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…
Emergence of damped-localized excitations of the Mott state due to disorder
R. S. Souza, Axel Pelster, F. E. A. dos Santos
A key aspect of ultracold bosonic quantum gases in deep optical lattice potential wells is the realization of the strongly interacting Mott insulating phase. Many characteristics o…
Quantum Kinetic Theory of Collisionless Superfluid Internal Convection
Lukas Gilz, James R. Anglin
Superfluids can transport heat via simultaneous opposite flows of their spatially interpenetrating condensate and thermal components. While this internal convection is usually desc…