Enhanced repulsively bound atom pairs in topological optical lattice ladders
Quantum Science and Technology IOP Publishing 5:4 (2020) 045017
Erratum: Randomized benchmarking in the analogue setting (2020 Quantum Sci. Technol. 5 034001)
Quantum Science and Technology IOP Publishing 5:4 (2020) 049601
Interplay between coherent and dissipative dynamics of bosonic doublons in an optical lattice
Physical Review Research American Physical Society (APS) 2:4 (2020) 043050
Collisionally Inhomogeneous Bose-Einstein Condensates with a Linear Interaction Gradient.
Physical review letters 125:18 (2020) 183602
Abstract:
We study the evolution of a collisionally inhomogeneous matter wave in a spatial gradient of the interaction strength. Starting with a Bose-Einstein condensate with weak repulsive interactions in quasi-one-dimensional geometry, we monitor the evolution of a matter wave that simultaneously extends into spatial regions with attractive and repulsive interactions. We observe the formation and the decay of solitonlike density peaks, counterpropagating self-interfering wave packets, and the creation of cascades of solitons. The matter-wave dynamics is well reproduced in numerical simulations based on the nonpolynomial Schrödinger equation with three-body loss, allowing us to better understand the underlying behavior based on a wavelet transformation. Our analysis provides new understanding of collapse processes for solitons, and opens interesting connections to other nonlinear instabilities.Dynamics of rotated spin states and magnetic ordering with two-component bosonic atoms in optical lattices
Physical Review A American Physical Society (APS) 102:2 (2020) 023321