11 papers
Decaying superfluid turbulence near an anomalous non-thermal fixed point
Niklas Rasch, Thomas Gasenzer
We investigate anomalously slow coarsening in a dilute two-dimensional (2d) superfluid closed with respect to particle and energy exchange with the environment. The dynamics is dem…
Jones-Roberts solitary waves and the onset of rotation in a spherical surface condensate
Noel Cuadra, Alberto Villois, Thomas Gasenzer +1
The nonlinear excitations underlying the onset of rotation in a dilute Bose-Einstein condensate confined to a thin spherical shell are studied. These excitations correspond to soli…
Observation of sine-Gordon-like solitons in a spinor Bose-Einstein condensate
Yannick Deller, Alexander Schmutz, Raphael Schäfer +7
We experimentally generate sine-Gordon-like solitons in a spin-1 spinor Bose-Einstein condensate (BEC) utilizing a robust and reproducible local phase-imprinting scheme. We find th…
Quantum integrable matrix models of spinor Bose gases in one spatial dimension
Hannes Köper, Thomas Gasenzer
Degenerate spinor Bose gases with repulsive density-density interaction and anti-ferromagnetic spin-spin coupling in one spatial dimension are shown to be described by a quantum in…
Morphological false-vacuum decay in dipolar supersolids
Wyatt Kirkby, Lauriane Chomaz, Thomas Gasenzer
False-vacuum decay between two morphologically distinct supersolid phases via bubble nucleation is studied in a uniform dipolar gas confined to the plane. Starting from a metastabl…
Anomalous non-thermal fixed point in a quasi-two-dimensional dipolar Bose gas
Niklas Rasch, Lauriane Chomaz, Thomas Gasenzer
The emergence of distinctly sub-diffusive scaling in the vicinity of an anomalous non-thermal fixed point is discussed in a quasi-two-dimensional dipolar Bose gas in the superfluid…