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Universal scattering of ultracold atoms and molecules in optical potentials. / Li, Hui; Li, Ming; Makrides, Constantinos; Petrov, Alexander; Kotochigova, Svetlana.
в: Atoms, Том 7, № 1, 36, 15.03.2019.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Universal scattering of ultracold atoms and molecules in optical potentials
AU - Li, Hui
AU - Li, Ming
AU - Makrides, Constantinos
AU - Petrov, Alexander
AU - Kotochigova, Svetlana
N1 - Li, H.; Li, M.; Makrides, C.; Petrov, A.; Kotochigova, S. Universal Scattering of Ultracold Atoms and Molecules in Optical Potentials. Atoms 2019, 7, 36.
PY - 2019/3/15
Y1 - 2019/3/15
N2 - Universal collisions describe the reaction of molecules and atoms as dominated by longrange interparticle interactions. Here, we calculate the universal inelastic rate coefficients for a large group of ultracold polar molecules in their lower ro-vibrational states colliding with one of their constituent atoms. The rate coefficients are solely determined by values of the dispersion coefficient and reduced mass of the collisional system. We use the ab initio coupled-cluster linear response method to compute dynamic molecular polarizabilities and obtain the dispersion coefficients for some of the collisional partners and use values from the literature for others. Our polarizability calculations agree well with available experimental measurements. Comparison of our inelastic rate coefficients with results of numerically exact quantum-mechanical calculations leads us to conjecture that collisions with heavier atoms can be expected to be more universal.
AB - Universal collisions describe the reaction of molecules and atoms as dominated by longrange interparticle interactions. Here, we calculate the universal inelastic rate coefficients for a large group of ultracold polar molecules in their lower ro-vibrational states colliding with one of their constituent atoms. The rate coefficients are solely determined by values of the dispersion coefficient and reduced mass of the collisional system. We use the ab initio coupled-cluster linear response method to compute dynamic molecular polarizabilities and obtain the dispersion coefficients for some of the collisional partners and use values from the literature for others. Our polarizability calculations agree well with available experimental measurements. Comparison of our inelastic rate coefficients with results of numerically exact quantum-mechanical calculations leads us to conjecture that collisions with heavier atoms can be expected to be more universal.
KW - Chemical reactions
KW - Dispersion interaction
KW - Dynamic polorizability
KW - Ultracold atom-molecule collisions
KW - Universal model
KW - Van der Waals coefficients
KW - chemical reactions
KW - COLLISIONS
KW - dispersion interaction
KW - van der Waals coefficients
KW - dynamic polorizability
KW - universal model
KW - ultracold atom-molecule collisions
UR - http://www.scopus.com/inward/record.url?scp=85066484525&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/universal-scattering-ultracold-atoms-molecules-optical-potentials
U2 - 10.3390/atoms7010036
DO - 10.3390/atoms7010036
M3 - Article
AN - SCOPUS:85066484525
VL - 7
JO - Atoms
JF - Atoms
SN - 2218-2004
IS - 1
M1 - 36
ER -
ID: 42688042