Publication
Tunable optical lattices for the creation of matter-wave lattice solitons
Optics Express
34,
623–637
(2026)
We present experimental techniques that employ an optical accordion lattice with dynamically tunable spacing to create and study bright …
Experimental observation of single- and multi-site matter-wave solitons in an optical accordion lattice
Physical Review Letters
135,
(2025)
We report the experimental observation of discrete bright matter-wave solitons with attractive interaction in an optical lattice. Using …
Phonon excitations of Floquet-driven superfluids in a tilted optical lattice
Physical Review Research
6,
(2024)
Tilted lattice potentials with periodic driving play a crucial role in the study of artificial gauge fields and topological phases with …
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,
243603
(2021)
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 …