Magnetic control of ultra-cold Li-6 and Yb-174(P-3(2)) atom mixtures with Feshbach resonances

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Magnetic control of ultra-cold Li-6 and Yb-174(P-3(2)) atom mixtures with Feshbach resonances. / Petrov, Alexander; Makrides, Constantinos; Kotochigova, Svetlana.

In: New Journal of Physics, Vol. 17, 2015.

Research output: Contribution to journal › Article

BibTeX

@article{9c2c8e26c81741dd9ad52c66c3e2121d,

title = "Magnetic control of ultra-cold Li-6 and Yb-174(P-3(2)) atom mixtures with Feshbach resonances",

abstract = "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.",

author = "Alexander Petrov and Constantinos Makrides and Svetlana Kotochigova",

year = "2015",

doi = "10.1088/1367-2630/17/4/045010",

language = "English",

volume = "17",

journal = "New Journal of Physics",

issn = "1367-2630",

publisher = "IOP Publishing Ltd.",

}

RIS

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