Adam Savage visits RbK!
Adam Savage, of Mythbusters fame, gave the NIST colloquium today and visited the RbK lab! Pictured (left to right) are Alina, Ian, Edvinas, Emmanuel and Adam.
Category: RbK
JQI writeup: Twisting Up Atoms Through Space and Time
Fab science communicator and group alum Dina Genkina has done a great writeup of our recent results! Dynamically Induced Symmetry Breaking and Out-of-Equilibrium Topology in a 1D Quantum System; G. H. Reid, M. Lu, A. R. Fritsch, A. M. Piñeiro, …
JQI writeup: Twisting Up Atoms Through Space and Time Read more »
Dr. Graham Reid defends his thesis!
On this day, Jan. 19, 2023, Graham Reid defended his thesis. Congratulations Graham!
Dark solitons in Bose–Einstein condensates: a dataset for many-body physics research
We establish a dataset of over 1.6 x 10^4 experimental images of Bose–Einstein condensates containing solitonic excitations to enable machine learning (ML) for many-body physics research. About 33% of this dataset has manually assigned and carefully curated labels. The remainder …
Dark solitons in Bose–Einstein condensates: a dataset for many-body physics research Read more »
Dynamical instability of 3d stationary and traveling planar dark solitons
Here we revisit the topic of stationary and propagating solitonic excitations in self-repulsive three-dimensional (3D) Bose–Einstein condensates by quantitatively comparing theoretical analysis and associated numerical computations with our experimental results. Motivated by numerous experimental efforts, including our own herein, we …
Dynamical instability of 3d stationary and traveling planar dark solitons Read more »
Dynamically Induced Symmetry Breaking and Out-of-Equilibrium Topology in a 1D Quantum System
Nontrivial topology in lattices is characterized by invariants—such as the Zak phase for one-dimensional (1D) lattices—derived from wave functions covering the Brillouin zone. We realize the 1D bipartite Rice-Mele (RM) lattice using ultracold 87Rb and focus on lattice configurations possessing …
Floquet Engineering Topological Dirac Bands
We experimentally realized a time-periodically modulated 1D lattice for ultracold atoms featuring a pair of linear bands, each with a Floquet winding number. These bands are spin-momentum locked and almost perfectly linear everywhere in the Brillouin zone: a near-ideal realization …
Self-Bayesian aberration removal via constraints for ultracold atom microscopy
High-resolution imaging of ultracold atoms typically requires custom high numerical aperture (NA) optics, as is the case for quantum gas microscopy. These high NA objectives involve many optical elements, each of which contributes to loss and light scattering, making them …
Self-Bayesian aberration removal via constraints for ultracold atom microscopy Read more »
Machine-learning enhanced dark soliton detection in Bose–Einstein condensates
Most data in cold-atom experiments comes from images, the analysis of which is limited by our preconceptions of the patterns that could be present in the data. We focus on the well-defined case of detecting dark solitons—appearing as local density …
Machine-learning enhanced dark soliton detection in Bose–Einstein condensates Read more »
Creating solitons with controllable and near-zero velocity in Bose-Einstein condensates
Established techniques for deterministically creating dark solitons in repulsively interacting atomic Bose-Einstein condensates (BECs) can only access a narrow range of soliton velocities. Because velocity affects the stability of individual solitons and the properties of soliton-soliton interactions, this technical limitation …
Creating solitons with controllable and near-zero velocity in Bose-Einstein condensates Read more »