Dynamics of spin–orbit recoupling in collisions of alkali atoms with noble-gas atoms using atomic core potentials

2003 ◽  
Vol 119 (23) ◽  
pp. 12316-12322 ◽  
Author(s):  
A. Reyes ◽  
D. A. Micha
Keyword(s):  
Noble Gas ◽  
Spin Orbit ◽  
Atomic Core ◽  
Alkali Atoms

scholarly journals Spin-Orbit Perturbation in Heavy Alkali Atoms

1970 ◽  
Vol 25 (5) ◽  
pp. 267-270 ◽  
Author(s):  
G. Baum ◽  
M. S. Lubell ◽  
W. Raith
Keyword(s):  
Spin Orbit ◽  
Orbit Perturbation ◽  
Alkali Atoms

scholarly journals NOBLE GAS, ALKALI AND ALKALINE ATOMS INTERACTING WITH A GOLD SURFACE

2010 ◽  
Vol 25 (11) ◽  
pp. 2337-2344 ◽  
Author(s):  
GRZEGORZ ŁACH ◽  
MAARTEN DEKIEVIET ◽  
ULRICH D. JENTSCHURA
Keyword(s):  
Noble Gas ◽  
Gold Surface ◽  
Perfect Conductor ◽  
Interaction Potentials ◽  
Atomic Systems ◽  
Electromagnetic Interactions ◽  
Alkali Atoms ◽  
Explicitly Correlated ◽  
Realistic Representation ◽  
Dynamic Polarizabilities

The attractive branch of the interaction potentials with the surface of gold have been computed for a large variety of atomic systems: the hydrogen atom, noble gases ( He , Ne , Ar , Kr , Xe ), alkali atoms ( Li , Na , K , Rb , Cs ) and alkaline atoms ( Be , Mg , Ca , Sr , Ba ). The results include highly accurate dynamic polarizabilities for the helium atom calculated using a variational method and explicitly correlated wavefunctions. For other atoms considered we used the data available in the literature. The interaction potentials include both the effects of retardation of the electromagnetic interactions and a realistic representation of the optical response function of gold (beyond the approximation of a perfect conductor). An explicit comparison of our result to the interaction between an atom and a perfect conductor is given.

Core-polarization effects in the alkali atoms: oscillator-strength calculations

1986 ◽  
Vol 64 (8) ◽  
pp. 867-871 ◽  
Author(s):  
Inmaculada Martin ◽  
Carmen Barrientos
Keyword(s):  
Oscillator Strength ◽  
Dipole Transition ◽  
Quantum Defect ◽  
Oscillator Strengths ◽  
Transition Moment ◽  
Spin Orbit ◽  
Core Polarization ◽  
Polarization Effects ◽  
Alkali Atoms ◽  
Dipole Transition Moment

Oscillator strengths for the alkali group of elements have been computed through the quantum defect orbital (QDO) formalism. Three forms of the dipole transition moment have been employed, two of them accounting for core–valence polarization. Clear improvement is obtained over the nonpolarized calculations for the lighter elements, whereas for K, Rb, and Cs, the additional inclusion of spin–orbit effects is shown to be required.

Sensitized Fluorescence in Vapors of Alkali Atoms XIV. Temperature Dependence of Cross Sections for 72P1/2–72P3/2 Mixing in Cesium, Induced in Collisions with Noble Gas Atoms

1974 ◽  
Vol 52 (11) ◽  
pp. 945-949 ◽  
Author(s):  
I. N. Siara ◽  
H. S. Kwong ◽  
L. Krause
Keyword(s):  
Temperature Dependence ◽  
Cross Sections ◽  
Noble Gas ◽  
Excitation Transfer ◽  
Sensitized Fluorescence ◽  
Alkali Atoms ◽  
Resonance Doublet ◽  
The Cross ◽  
Adiabatic Case

The cross sections for 72P1/2–72P3/2 excitation transfer in cesium, induced in collisions with noble gas atoms, have been determined in a series of sensitized fluorescence experiments at temperatures ranging from 405 to 630 K. The cross sections which lie in the range 0.06–20 Å2, exhibit a temperature dependence which, however, is less pronounced than in the more adiabatic case of the cesium resonance doublet.

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