An ergodic measure for Diffusion Monte Carlo ground state wavefunctions: Application to a hydrogen cluster with an isotopic impurity

2019 ◽  
Vol 734 ◽  
pp. 136728
Author(s):  
A.D. Stringer ◽  
E. Curotto
Keyword(s):  
Monte Carlo ◽  
Ground State ◽  
Ergodic Measure ◽  
Diffusion Monte Carlo ◽  
State Wavefunctions

scholarly journals Ground state of a homogeneous Bose gas: A diffusion Monte Carlo calculation

1999 ◽  
Vol 60 (6) ◽  
pp. 5129-5132 ◽  
Author(s):  
S. Giorgini ◽  
J. Boronat ◽  
J. Casulleras
Keyword(s):  
Monte Carlo ◽  
Ground State ◽  
Monte Carlo Calculation ◽  
Bose Gas ◽  
Diffusion Monte Carlo

Diffusion Monte Carlo study of excitons and biexcitons in a mass-asymmetric electron–hole bilayer

2017 ◽  
Vol 19 (31) ◽  
pp. 20778-20785 ◽  
Author(s):  
Rajesh O. Sharma ◽  
L. K. Saini ◽  
Bhagwati Prasad Bahuguna
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Ground State ◽  
Monte Carlo Study ◽  
Diffusion Monte Carlo ◽  
Electron Hole ◽  
Bilayer System ◽  
System P ◽  
Diffusion Monte Carlo Method ◽  
Fixed Node

We employed the diffusion Monte Carlo method, under fixed node approximation, to investigate the various ground state properties of a mass-asymmetric electron–hole bilayer system.

scholarly journals New Insight into the Ground State of FePc: A Diffusion Monte Carlo Study

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Tom Ichibha ◽  
Zhufeng Hou ◽  
Kenta Hongo ◽  
Ryo Maezono
Keyword(s):  
Monte Carlo ◽  
Ground State ◽  
Monte Carlo Study ◽  
Diffusion Monte Carlo ◽  
Insight Into

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.

A CONSTRAINED PATH MONTE CARLO METHOD FOR NUCLEON SYSTEMS

2001 ◽  
Vol 15 (10n11) ◽  
pp. 1510-1518 ◽  
Author(s):  
K. E. SCHMIDT ◽  
A. SARSA ◽  
S. FANTONI
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Ground State ◽  
Degrees Of Freedom ◽  
Diffusion Monte Carlo ◽  
Nucleon Potential ◽  
Sign Problem ◽  
Hypernetted Chain ◽  
Path Constraint ◽  
Spatial Degrees Of Freedom

By combining diffusion Monte Carlo for the spatial degrees of freedom and auxiliary field Monte Carlo to separate the spin-isospin operators, we can solve for the ground state of many-nucleon systems. We use a path constraint to control the fermion sign problem and apply the method to neutron systems interacting with the Argonne v′8 two nucleon potential and the Urbana IX three-nucleon potential. We compare our results with fermion hypernetted chain calculations.

scholarly journals Zirconia and hafnia polymorphs: Ground-state structural properties from diffusion Monte Carlo

2018 ◽  
Vol 2 (7) ◽  
Author(s):  
Hyeondeok Shin ◽  
Anouar Benali ◽  
Ye Luo ◽  
Emily Crabb ◽  
Alejandro Lopez-Bezanilla ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Structural Properties ◽  
Ground State ◽  
Diffusion Monte Carlo
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