Publication
Instabilities of interacting matter waves in optical lattices with Floquet driving
Physical Review Research
5,
033024
(2023)
Caesium in lattice potentials
Group Haller
Floquet solitons and dynamics of periodically driven matter waves with negative effective mass
Physical Review Letters
127,
(2021)
We experimentally study the dynamics of weakly interacting Bose-Einstein condensates of cesium atoms in a 1D optical lattice with a …
Floquet solitons of matter waves
Abstract
We experimentally study the dynamics of a weakly interacting Bose-Einstein condensate of cesium atoms in a 1D optical lattice with a periodic driving force. After a sudden start of the driving we observe the formation of stable wave packets at the center of the fi rst Brillouin zone (BZ) in momentum space, and we interpret these as Floquet solitons in periodically driven systems. The wave packets become unstable when we add a trapping potential along the lattice direction leading to a redistribution of atoms within the BZ.
We studied the evolution of BECs with position-dependent interaction strengths. [Phys. Rev. Lett. 125, 183602 (2020)].
Collisionally inhomogeneous Bose-Einstein condensates with a linear interaction gradient
Physical Review Letters
125,
(2020)
We study the evolution of a collisionally inhomogeneous matter wave in a spatial gradient of the interaction strength. Starting with a …
Excitation modes of bright matter-wave solitons
Physical Review Letters
123,
(2019)
We experimentally study the excitation modes of bright matter-wave solitons in a quasi-one-dimensional geometry. The solitons are …