14 citations · 22 across the 2 of their papers we have counts for
6 papers · 1 filter
Observation of supersolid-like sound modes in a driven quantum gas
Nikolas Liebster, Marius Sparn, Elinor Kath +3
Driven systems are of fundamental scientific interest, as they can exhibit properties that are radically different from the same system at equilibrium. In certain cases, long-lived…
Experimental particle production in time-dependent spacetimes: a one-dimensional scattering problem
Marius Sparn, Elinor Kath, Nikolas Liebster +7
We experimentally study cosmological particle production in a two-dimensional Bose-Einstein condensate, whose density excitations map to an analog cosmology. The expansion of space…
Stable-fixed-point description of square-pattern formation in driven two-dimensional Bose-Einstein condensates
Keisuke Fujii, Sarah L. Görlitz, Nikolas Liebster +5
We investigate pattern formation in two-dimensional Bose-Einstein condensates (BECs) caused by periodic driving of the interatomic interaction. We show that this modulation generic…
Observation of pattern stabilization in a driven superfluid
Nikolas Liebster, Marius Sparn, Elinor Kath +6
The formation of patterns in driven systems has been studied extensively, and their emergence can be connected to a fine balance of instabilities and stabilization mechanisms. Whil…
Bose Einstein condensate as nonlinear block of a Machine Learning pipeline
Maurus Hans, Elinor Kath, Marius Sparn +5
Physical systems can be used as an information processing substrate and with that extend traditional computing architectures. For such an application the experimental platform must…
High signal to noise absorption imaging of alkali atoms at moderate magnetic fields
Maurus Hans, Finn Schmutte, Celia Viermann +4
We present an improved scheme for absorption imaging of alkali atoms at moderate magnetic fields, where the excited state is well in the Paschen-Back regime but the ground state hy…