Результаты исследований: Научные публикации в периодических изданиях › статья
Magnetic control of ultra-cold Li-6 and Yb-174(P-3(2)) atom mixtures with Feshbach resonances. / Petrov, Alexander; Makrides, Constantinos; Kotochigova, Svetlana.
в: New Journal of Physics, Том 17, 2015.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Magnetic control of ultra-cold Li-6 and Yb-174(P-3(2)) atom mixtures with Feshbach resonances
AU - Petrov, Alexander
AU - Makrides, Constantinos
AU - Kotochigova, Svetlana
PY - 2015
Y1 - 2015
N2 - We theoretically evaluate the feasibility to form magnetically-tunable Feshbach molecules in collisions between fermionic Li-6 atoms and bosonic metastable Yb-174(P-3(2)) atoms. In contrast to the well-studied alkali-metal atom collisions, collisions with meta-stable atoms are highly anisotropic. Our first-principle coupled-channel calculation of these collisions reveals the existence of broad Feshbach resonances due to the combined effect of anisotropic-molecular and atomic-hyperfine interactions. In order to fit our predictions to the specific positions of experimentally-observed broad resonance structures (Dowd et al 2014) we optimized the shape of the short-range potentials by direct least-square fitting. This allowed us to identify the dominant resonance by its leading angular momentum quantum numbers and describe the role of collisional anisotropy in the creation and broadening of this and other resonances.
AB - We theoretically evaluate the feasibility to form magnetically-tunable Feshbach molecules in collisions between fermionic Li-6 atoms and bosonic metastable Yb-174(P-3(2)) atoms. In contrast to the well-studied alkali-metal atom collisions, collisions with meta-stable atoms are highly anisotropic. Our first-principle coupled-channel calculation of these collisions reveals the existence of broad Feshbach resonances due to the combined effect of anisotropic-molecular and atomic-hyperfine interactions. In order to fit our predictions to the specific positions of experimentally-observed broad resonance structures (Dowd et al 2014) we optimized the shape of the short-range potentials by direct least-square fitting. This allowed us to identify the dominant resonance by its leading angular momentum quantum numbers and describe the role of collisional anisotropy in the creation and broadening of this and other resonances.
U2 - 10.1088/1367-2630/17/4/045010
DO - 10.1088/1367-2630/17/4/045010
M3 - Article
VL - 17
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
ER -
ID: 4035734