188 citations · 335 across the 12 of their papers we have counts for
5 papers · 1 filter
Orbital many-body dynamics of bosons in the second Bloch band of an optical lattice
J. Vargas, M. Nuske, R. Eichberger +3
A Bose-Einstein condensate (BEC) of rubidium atoms is prepared in one of two degenerate energy minima in the second Bloch band of an optical square lattice. A subsequent oscillatio…
Metastable order protected by destructive many-body interference
M. Nuske, J. Vargas, M. Hachmann +3
The phenomenon of metastability can shape dynamical processes on all temporal and spatial scales. Here, we induce metastable dynamics by pumping ultracold bosonic atoms from the lo…
Observation of topological Bloch-state defects and their merging transition
Matthias Tarnowski, Marlon Nuske, Nick Fläschner +6
Topological defects in Bloch bands, such as Dirac points in graphene, and their resulting Berry phases play an important role for the electronic dynamics in solid state crystals. S…
Sudden-quench dynamics of Bardeen-Cooper-Schrieffer states in deep optical lattices
Marlon Nuske, L. Mathey, Eite Tiesinga
We determine the exact dynamics of an initial Bardeen-Cooper-Schrieffer (BCS) state of ultra-cold atoms in a deep hexagonal optical lattice. The dynamical evolution is triggered by…
Optimization of collisional Feshbach cooling of an ultracold nondegenerate gas
Marlon Nuske, Eite Tiesinga, L. Mathey
We optimize a collision-induced cooling process for ultracold atoms in the nondegenerate regime. It makes use of a Feshbach resonance, instead of rf radiation in evaporative coolin…