10 citations · 28 across the 8 of their papers we have counts for
3 papers · 1 filter
Complex-valued in-medium potential between heavy impurities in ultracold atoms
Yukinao Akamatsu, Shimpei Endo, Keisuke Fujii +1
We formulate the induced potential in a finite temperature cold atomic medium between two heavy impurities, or polarons, which is shown to be \textit{complex-valued} in general. Th…
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…