Sad goodbyes to Shouvik from the ErNa team
Shouvik is heading out to “startup” great things in Hyderabad.
Efficient production of sodium Bose–Einstein condensates in a hybrid trap
We describe an apparatus that efficiently produces 23Na Bose–Einstein condensates (BECs) in a hybrid trap that combines a quadrupole magnetic field with a far-detuned optical dipole trap. Using a Bayesian optimization framework, we systematically optimize all BEC production parameters in modest-sized …
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The Rayleigh-Taylor instability in a binary quantum fluid
Instabilities, where small fluctuations seed the formation of large-scale structures, govern dynamics in a variety of fluid systems. The Rayleigh-Taylor instability (RTI), present from tabletop to astronomical scales, is an iconic example characterized by mushroom-shaped incursions appearing when immiscible fluids …
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Dynamical structure factor from weak measurements
Much of our knowledge of quantum systems is encapsulated in the expectation value of Hermitian operators, experimentally obtained by averaging projective measurements. However, dynamical properties are often described by products of operators evaluated at different times; such observables cannot be …
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Dario D’Amato takes home top poster
At the 2025 Early Career Poster Presentation, Dario took home the “Most Outstanding Poster in Physics” with his poster Nondestructive Characterization of Cold Atomic Clouds with Machine Learning!
JQI features Mingshu’s turbulence result!
https://jqi.umd.edu/news/mysteriously-mundane-turbulence-revealed-2d-superfluid
Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength latticeKolmogorov Scaling in Turbulent 2D Bose-Einstein Condensates
Geometrical frustration and long-range couplings are key contributors to create quantum phases with different properties throughout physics. We propose a scheme where both ingredients naturally emerge in a Raman induced subwavelength lattice. We first demonstrate that Raman-coupled multicomponent quantum gases …
Kolmogorov Scaling in Turbulent 2D Bose-Einstein Condensates
We investigated turbulence in 2D atomic Bose-Einstein condensates (BECs) using a minimally destructive, impurity injection technique analogous to particle image velocimetry in conventional fluids. Our approach transfers small regions of the BEC into a different hyperfine state and tracks their …
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