Double photoionization of atomic oxygen: Feshbach resonances in the two-electron continuum
Sign Up to like & getrecommendations! Published in 2021 at "Physica Scripta"
DOI: 10.1088/1402-4896/abf18b
Abstract: We describe a joint experimental and theoretical investigation on oxygen double photoionization—the emission of two electrons from atomic oxygen following single photon absorption. High-resolution experimental measurements were performed at the Advanced Light Source, revealing sharp… read more here.
Keywords: oxygen; double photoionization; two electron; feshbach resonances ... See more keywords
Width and shift of Fano-Feshbach resonances for van der Waals interactions
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.042710
Abstract: We revisit the basic properties of Fano-Feshbach resonances in two-body systems with van der Waals tail interactions, such as ultracold neutral atoms. Using a two-channel model and two different methods, we investigate the relationship between… read more here.
Keywords: der waals; van der; width shift; fano feshbach ... See more keywords
Observation of interspecies Feshbach resonances in an ultracold 39K-133Cs mixture and refinement of interaction potentials.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.022715
Abstract: We observe interspecies Feshbach resonances due to s-wave bound states in ultracold 39K -133Cs scattering for three different spin mixtures. The resonances are observed as joint atom loss and heating of the K sample. We… read more here.
Keywords: interspecies feshbach; ultracold 39k; interaction potentials; feshbach resonances ... See more keywords
Random to Chaotic Statistic Transformation in Low-Field Fano-Feshbach Resonances of Cold Thulium Atoms.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.213402
Abstract: Here, we report on the observation of a random to chaotic temperature transformation in the statistics of nearest-neighbor spacings of Fano-Feshbach resonances in the ultracold polarized gas of thulium-169 atoms. We associate this transformation to the… read more here.
Keywords: thulium atoms; fano feshbach; thulium; feshbach resonances ... See more keywords
Attosecond photoionization delays in the vicinity of molecular Feshbach resonances
Sign Up to like & getrecommendations! Published in 2023 at "Science Advances"
DOI: 10.1126/sciadv.ade3855
Abstract: Temporal delays extracted from photoionization phases are currently determined with attosecond resolution by using interferometric methods. Such methods require special care when photoionization occurs near Feshbach resonances due to the interference between direct ionization and… read more here.
Keywords: photoionization delays; delays vicinity; photoionization; feshbach resonances ... See more keywords
Observation of Feshbach Resonances in an 167Er–6Li Fermi–Fermi Mixture
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the Physical Society of Japan"
DOI: 10.7566/jpsj.92.054301
Abstract: We present our experimental investigation of the interspecies Feshbach spectrum in a mixture of ${}^{167}$Er($F = 19/2, m_F = -19/2$)-${}^6$Li($F = 1/2, m_F = 1/2$) atoms in the microkelvin temperature regime. These temperatures are achieved… read more here.
Keywords: fermi; resonances 167er; mixture; 167er 6li ... See more keywords