Ground State Properties of Hg2. 2. A Quantum Monte Carlo Study

1996 ◽  
Vol 100 (15) ◽  
pp. 6152-6155 ◽  
Author(s):  
Heinz-Jürgen Flad ◽  
Michael Dolg
Keyword(s):  
Monte Carlo ◽  
Ground State ◽  
Quantum Monte Carlo ◽  
Monte Carlo Study ◽  
Ground State Properties

VARIATIONAL COMPUTATIONS FOR EXCITONS IN QUANTUM DOTS: A QUANTUM MONTE CARLO STUDY

2011 ◽  
Vol 25 (01) ◽  
pp. 119-130
Author(s):  
A. YILDIZ ◽  
S. ŞAKİROĞLU ◽  
Ü. DOĞAN ◽  
K. AKGÜNGÖR ◽  
H. EPİK ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Monte Carlo ◽  
Ground State ◽  
Quantum Monte Carlo ◽  
Three Dimensional ◽  
Monte Carlo Study ◽  
Wave Functions ◽  
Monte Carlo Techniques ◽  
Oscillator Basis ◽  
Ground State Energies

A study of variational wave functions for calculation of the ground-state energies of excitons confined in a two-dimensional (2D) disc-like and three-dimensional (3D) spherical parabolic GaAs quantum dots (QDs) is presented. We have used four variational trial wave functions constructed as the harmonic-oscillator basis multiplied by different correlation functions. The proposed correlation function formed by including linear expansion in terms of Hylleraas-like coordinates to the Jastrow factor is able to capture nearly exactly the ground-state energies of 3D excitons, and it properly account for the results of 2D excitons. Quantum Monte Carlo techniques combined with the proposed wave function are a powerful tool for studying excitons in parabolic QDs.

Ground-state properties of the water molecule by reptation quantum Monte Carlo

2010 ◽  
Vol 961 (1-3) ◽  
pp. 29-34 ◽  
Author(s):  
Daniel G. Oblinsky ◽  
Wai Kong Yuen ◽  
Stuart M. Rothstein
Keyword(s):  
Monte Carlo ◽  
Water Molecule ◽  
Ground State ◽  
Quantum Monte Carlo ◽  
Ground State Properties
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