Accurate calculation of the attractive interaction of two ground state helium atoms

1973 ◽  
Vol 59 (8) ◽  
pp. 4557-4558 ◽  
Author(s):  
B. Liu ◽  
A. D. McLean
Keyword(s):  
Ground State ◽  
Attractive Interaction ◽  
Accurate Calculation ◽  
Helium Atoms

Photoabsorption profile and satellite features of the potassium4s→4ptransition perturbed by ground-state helium atoms

2012 ◽  
Vol 86 (5) ◽  
Author(s):  
H. Boutarfa ◽  
K. Alioua ◽  
M. Bouledroua ◽  
A.-R. Allouche ◽  
M. Aubert-Frécon
Keyword(s):  
Ground State ◽  
Helium Atoms

Radiative quenching of He(2S1) induced by collisions with ground-state helium atoms

1988 ◽  
Vol 38 (4) ◽  
pp. 1877-1884 ◽  
Author(s):  
B. Zygelman ◽  
A. Dalgarno
Keyword(s):  
Ground State ◽  
Helium Atoms

Laser Spectroscopic Studies of a Helium Flowing Afterglow

1989 ◽  
Vol 43 (2) ◽  
pp. 293-298 ◽  
Author(s):  
P. A. Fleitz ◽  
C. J. Seliskar
Keyword(s):  
Angular Momentum ◽  
Reaction Zone ◽  
Ground State ◽  
Pressure Pulse ◽  
Spectroscopic Studies ◽  
Intersystem Crossing ◽  
Flowing Afterglow ◽  
Helium Atoms ◽  
Laser Pumping ◽  
Laser Spectroscopic

The reaction zone of a helium flowing afterglow has been characterized as consisting of nearly thermalized 23 S metastables in a bath of ground-state helium atoms. LIF studies show that collision-induced angular momentum scrambling occurs efficiently among the n = 3 states of helium, even to the extent of including a small amount of intersystem crossing. LOG transients have been characterized for the afterglow reaction zone, and it is proposed that these signals are associated with a pressure pulse generated by laser pumping the helium 23 S metatables.

The Hyperfine Structure of the Ground State in the Muonic Helium Atoms

2018 ◽  
Vol 15 (3) ◽  
pp. 236-239 ◽  
Author(s):  
D. T. Aznabayev ◽  
A. K. Bekbaev ◽  
V. I. Korobov
Keyword(s):  
Hyperfine Structure ◽  
Ground State ◽  
Helium Atoms

Accurate calculation of the bound states of the quantum dipole problem in two dimensions

Open Physics ◽  
2012 ◽  
Vol 10 (1) ◽  
Author(s):  
Paolo Amore
Keyword(s):  
Asymptotic Behavior ◽  
Upper Bound ◽  
Ground State ◽  
Bound States ◽  
Two Dimensions ◽  
Accurate Calculation ◽  
Perfect Agreement

AbstractWe present an accurate calculation of the energies of the bound states of the quantumdipole problemin two dimensions using a Rayleigh-Ritz approach. We obtain an upper bound for the energy of the ground state, which is by far the most precise in the literature for this problem. We also obtain an alternative estimate of the fundamental energy of the model performing an extrapolation of the results corresponding to different subspaces. Finally, our calculation of the energies of the first 500 states shows a perfect agreement with the expected asymptotic behavior.

RubidiumD1andD2atomic lines’ pressure broadened by ground-state helium atoms

2014 ◽  
Vol 47 (18) ◽  
pp. 185201 ◽  
Author(s):  
F Bouhadjar ◽  
K Alioua ◽  
M T Bouazza, ◽  
M Bouledroua
Keyword(s):  
Ground State ◽  
Helium Atoms
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