The ground-state energies of three-body Coulomb systems calculated by the short-time Green function Monte Carlo method

1990 ◽  
Vol 86 (1) ◽  
pp. 43 ◽  
Author(s):  
Richard G. J. Ball ◽  
Bryan H. Wells
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Green Function ◽  
Ground State ◽  
Coulomb Systems ◽  
Three Body ◽  
Short Time ◽  
Ground State Energies

scholarly journals Interaction of Be4+ and Ground State Hydrogen Atom—Classical Treatment of the Collision

Atoms ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 27
Author(s):  
I. Ziaeian ◽  
K. Tőkési
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Hydrogen Atom ◽  
Cross Sections ◽  
Ground State ◽  
Bound States ◽  
Classical Trajectory ◽  
Projectile Energy ◽  
Three Body ◽  
Classical Trajectory Monte Carlo

The interaction between Be4+ and hydrogen atom is studied using the three-body classical trajectory Monte Carlo method (CTMC) and the quasiclassical trajectory Monte Carlo method of Kirschbaum and Wilets (QTMC-KW). We present total cross sections for target ionization, target excitation, and charge exchange to the projectile bound states. Calculations are carried out in the projectile energy range between 10 and 1000 keV/au, relevant to the interest of fusion research when the target hydrogen atom is in the ground state. Our results are compared with previous theoretical results. We found that the classical treatment describes reasonably well the cross sections for various final channels. Moreover, we show that the calculations by the QTMC-KW model significantly improve the obtained cross sections.

Quantum Monte Carlo ground state energies for the singly charged ions from Li through Ar

2010 ◽  
Vol 133 (6) ◽  
pp. 064102 ◽  
Author(s):  
P. Maldonado ◽  
A. Sarsa ◽  
E. Buendía ◽  
F. J. Gálvez
Keyword(s):  
Monte Carlo ◽  
Ground State ◽  
Quantum Monte Carlo ◽  
Singly Charged ◽  
Charged Ions ◽  
Ground State Energies
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