99 citations · 304 across the 5 of their papers we have counts for
5 papers
Subwavelength-width optical tunnel junctions for ultracold atoms
F. Jendrzejewski, S. Eckel, T. G. Tiecke +4
We propose a new method for creating far-field optical barrier potentials for ultracold atoms with widths that are narrower than the diffraction limit and can approach tens of nano…
Spectrum estimation of density operators with alkaline-earth atoms
Michael E. Beverland, Jeongwan Haah, Gorjan Alagic +3
We show that Ramsey spectroscopy of fermionic alkaline-earth atoms in a square-well trap provides an efficient and accurate estimate for the eigenspectrum of a density matrix whose…
Minimally destructive, Doppler measurement of a quantized, superfluid flow
A. Kumar, N. Anderson, W. D. Phillips +3
The Doppler effect, the shift in the frequency of sound due to motion, is present in both classical gases and quantum superfluids. Here, we perform an in-situ, minimally destructiv…
Interferometric measurement of the current-phase relationship of a superfluid weak link
S. Eckel, F. Jendrzejewski, A. Kumar +2
Weak connections between superconductors or superfluids can differ from classical links due to quantum coherence, which allows flow without resistance. Transport properties through…
Threshold for creating excitations in a stirred superfluid ring
K. C. Wright, R. B. Blakestad, C. J. Lobb +2
We have measured the threshold for creating long-lived excitations when a toroidal Bose-Einstein condensate is stirred by a rotating (optical) barrier of variable height. When the…