Quantum Monte Carlo study of the ground state of the two-dimensional Fermi fluid

Details Quantum Monte Carlo study of the ground state of the two-dimensional Fermi fluid Quantum Monte Carlo study of the ground state of the two-dimensional Fermi fluid

2010-02-10

arxiv.org/abs/1002.2122v1

Phys. Rev. B 79, 085414 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.79.085414

We have used the variational and diffusion quantum Monte Carlo methods to calculate the energy, pair correlation function, static structure factor, and momentum density of the ground state of the two-dimensional homogeneous electron gas. We have used highly accurate Slater-Jastrow-backflow trial wave functions and twist averaging to reduce finite-size effects where applicable. We compare our results with others in the literature and construct a local-density-approximation exchange-correlation functional for 2D systems.

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