scholarly journals Diffusion Monte Carlo study of a valley-degenerate electron gas and application to quantum dots

2008 ◽  
Vol 78 (19) ◽  
Author(s):  
G. J. Conduit ◽  
P. D. Haynes
Keyword(s):  
Quantum Dots ◽  
Monte Carlo ◽  
Electron Gas ◽  
Monte Carlo Study ◽  
Degenerate Electron ◽  
Diffusion Monte Carlo ◽  
Degenerate Electron Gas

scholarly journals Diffusion Monte Carlo study of circular quantum dots

2000 ◽  
Vol 62 (12) ◽  
pp. 8120-8125 ◽  
Author(s):  
Francesco Pederiva ◽  
C. J. Umrigar ◽  
E. Lipparini
Keyword(s):  
Quantum Dots ◽  
Monte Carlo ◽  
Monte Carlo Study ◽  
Diffusion Monte Carlo

DIFFUSION MONTE CARLO STUDY OF GROUND STATE PROPERTIES OF QUANTUM DOTS

2001 ◽  
Vol 15 (10n11) ◽  
pp. 1443-1446 ◽  
Author(s):  
FRANCESCO PEDERIVA
Keyword(s):  
Quantum Dots ◽  
Monte Carlo ◽  
Ground State ◽  
Monte Carlo Study ◽  
Wave Functions ◽  
Local Spin Density Approximation ◽  
Density Approximation ◽  
Diffusion Monte Carlo ◽  
Hartree Fock ◽  
Parabolic Quantum Dot

We present the results of Diffusion Monte Carlo (DMC) calculations based on accurate multiconfiguration wave functions for N electrons (N≤13) confined to a parabolic quantum dot. The density and correlation energies have been computed and compared with the predictions of local spin density approximation theory (LSDA). We also computed the addition energy a function of the number of electrons in the dot, and compared them with the results of LSDA and Hartree Fock calculations. DMC results show a behavior qualitatively closer to the result of recent capacitance experiments.

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