We use an atomic fountain clock to measure quantum scattering phase shifts precisely through a series of narrow, low-field Feshbach resonances at average collision energies below 1 μK. Our low spread in collision energy yields phase variations of order π=2 for target atoms in several F, mF states.We compare them to a theoretical model and establish the accuracy of the measurements and the theoretical uncertainties from the fitted potential.We find overall excellent agreement, with small statistically significant differences that remain unexplained
In the absence of inelastic scattering, Feshbach resonances produce poles in scattering lengths and ...
We observe interspecies Feshbach resonances due to s-wave bound states in ultracold 39K -133Cs scatt...
We demonstrate a Rb fountain clock which has a small cold collision shift that is cancelled by detun...
We use an atomic fountain clock to measure quantum scattering phase shifts precisely through a serie...
We demonstrate an interferometric scattering technique that allows highly precise measurements of s-...
The collision of two ultra-cold atoms results in a quantum-mechanical superposition of two outcomes:...
We study the behavior of the Eisenbud-Wigner collisional time delay around Feshbach resonances in co...
Studies of cold atom collisions and few-body interactions often require the energy dependence of the...
One of the main limitations of cesium atomic fountains has been the cold collision frequency shift. ...
7 pagesOne of the main limitations of cesium atomic fountains has been the cold collision frequency ...
We describe procedures for converging on and characterizing zero-energy Feshbach resonances that app...
In this chapter, we describe scattering resonance phenomena in general, and focus on the mechanism o...
We explore the scattering properties of ultracold ground-state Cs atoms at magnetic fields between 4...
We have observed Feshbach resonances for 133Cs atoms in two different hyperfine states at static mag...
In the absence of inelastic scattering, Feshbach resonances produce poles in scattering lengths and ...
In the absence of inelastic scattering, Feshbach resonances produce poles in scattering lengths and ...
We observe interspecies Feshbach resonances due to s-wave bound states in ultracold 39K -133Cs scatt...
We demonstrate a Rb fountain clock which has a small cold collision shift that is cancelled by detun...
We use an atomic fountain clock to measure quantum scattering phase shifts precisely through a serie...
We demonstrate an interferometric scattering technique that allows highly precise measurements of s-...
The collision of two ultra-cold atoms results in a quantum-mechanical superposition of two outcomes:...
We study the behavior of the Eisenbud-Wigner collisional time delay around Feshbach resonances in co...
Studies of cold atom collisions and few-body interactions often require the energy dependence of the...
One of the main limitations of cesium atomic fountains has been the cold collision frequency shift. ...
7 pagesOne of the main limitations of cesium atomic fountains has been the cold collision frequency ...
We describe procedures for converging on and characterizing zero-energy Feshbach resonances that app...
In this chapter, we describe scattering resonance phenomena in general, and focus on the mechanism o...
We explore the scattering properties of ultracold ground-state Cs atoms at magnetic fields between 4...
We have observed Feshbach resonances for 133Cs atoms in two different hyperfine states at static mag...
In the absence of inelastic scattering, Feshbach resonances produce poles in scattering lengths and ...
In the absence of inelastic scattering, Feshbach resonances produce poles in scattering lengths and ...
We observe interspecies Feshbach resonances due to s-wave bound states in ultracold 39K -133Cs scatt...
We demonstrate a Rb fountain clock which has a small cold collision shift that is cancelled by detun...