TY - JOUR
T1 - Static Self-Energy and Effective Mass of the Homogeneous Electron Gas from Quantum Monte Carlo Calculations
AU - Holzmann, Markus
AU - Calcavecchia, Francesco
AU - Ceperley, David M.
AU - Olevano, Valerio
N1 - The authors acknowledge support from the Fondation Nanosciences de Grenoble. D. M. C. is supported by the U.S. Department of Energy, CMS program No. DE-SC0020177. M. H. thanks Saverio Moroni for many valuable discussions. Computations were done using the GRICAD infrastructure which is supported by Grenoble research communities, and HPC resources from GENCI-IDRIS A0140914158.
PY - 2023/11/3
Y1 - 2023/11/3
N2 - We discuss the methodology of quantum Monte Carlo calculations of the effective mass based on the static self-energy ς(k,0). We then use variational Monte Carlo calculations of ς(k,0) of the homogeneous electron gas at various densities to obtain results very close to perturbative G0W0 calculations for values of the density parameter 1≤rs≤10. The obtained values for the effective mass are close to diagrammatic Monte Carlo results and disagree with previous quantum Monte Carlo calculations based on a heuristic mapping of excitation energies to those of an ideal gas.
AB - We discuss the methodology of quantum Monte Carlo calculations of the effective mass based on the static self-energy ς(k,0). We then use variational Monte Carlo calculations of ς(k,0) of the homogeneous electron gas at various densities to obtain results very close to perturbative G0W0 calculations for values of the density parameter 1≤rs≤10. The obtained values for the effective mass are close to diagrammatic Monte Carlo results and disagree with previous quantum Monte Carlo calculations based on a heuristic mapping of excitation energies to those of an ideal gas.
UR - http://www.scopus.com/inward/record.url?scp=85176088630&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85176088630&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.131.186501
DO - 10.1103/PhysRevLett.131.186501
M3 - Article
C2 - 37977649
AN - SCOPUS:85176088630
SN - 0031-9007
VL - 131
JO - Physical review letters
JF - Physical review letters
IS - 18
M1 - 186501
ER -